26 June 2017


Rockwell Compact Circular Saw

Lightweight and compact circular saw

I had to renovate our shed last year, and the old 7.25-inch circular saw I had was loaned out to a friend and never returned. I bought this Rockwell compact 4.5 inch circular saw to replace it, and I have used it on several projects since then. It made quick work of the plywood I had to cut to size to replace the rotten plywood, and it cut the 2x4s and 1x4s easily as well.

What makes it so much better than a regular circular saw is that it is about half the weight and size of a regular circular saw which makes it much easier to handle and use. If you are making a long cut in sheet goods, for example, the light weight makes it a lot easier to move through the material. You can even use it one handed. Try that with a regular circular saw. It is just way less intimidating of a tool than a regular circular saw. It is less powerful in terms of amps, but the blade is not as thick as a regular blade so it easily powers through 2×4’s, 2×6’s, and sheet goods.

It comes with a metal track/guide to allow you to make long rip cuts with ease. It also comes with a dust port insert if you wish to use a dust collection vacuum. The Rockwell site says it can replace a regular 7 1/4″ circular saw for both DIYers and pros. I would say it is definitely a great saw for the DIYer and possibly the professional to use for trim and light duty tasks. A pro would probably rather use his or her worm drive HD circular saw for most cuts. You can find it at most online sites. The local Home Depot did not carry it in-store, but they did have it for sale online. It does not come with a bag or box, but I stuck mine in a DeWalt contractor’s bag that I had leftover from a previous tool

-- Justin La Mar 06/26/17

25 June 2017


Change Agent/Informed Delivery/WorkFlowy

Recomendo: issue no. 48

Book I’m devouring:
I’m into the newest sci-fi thriller from Daniel Suarez, Change Agent. Posits a near future where human faces and bodies can be altered by applying a one-time DNA treatment. In this story, the first to master this experimental technology is the underworld. Hijinks ensue. The speculative science is plausible. – KK

Snail mail in your email:
USPS’s Informed Delivery is free and available almost everywhere in the US now. Every morning, I get an email with scanned images of my mail before it’s delivered. Most of the time it’s junk, and those days I don’t even bother checking my mailbox, but this service is great if you’re expecting something important. — CD

Task Management:
I learned about the the task manager, WorkFlowy from a Cool Tools review. It’s a hierarchical list maker with a couple of bells and whistles, but its power is in its simplicity and ease of use. I’ve tried more task managers than I’d care to admit, but this is the one I’m going to use from now on. I pay $5 a month just to support them, but the free version is all I really need. — MF

I’m so excited about this recipe collection of Summer pastas by NYT cooking. Most of them require ingredients that are out of my comfort zone, which is a good thing, and they all seem fairly easy to make! I’ve already crossed two off my list and they were delicious. — CD

Clear vision underwater:
If your eyes aren’t perfect and you wear corrective lenses, you can purchase inexpensive swim goggles with corrective lenses built in. They make a huge difference underwater. I use TYR Corrective Goggles, about $20. Select your prescription strength, between -2 and -8.  — KK

Useful newsletter:
Most of the email newsletters I subscribe to go unread. Kevin Rose’s The Journal is one I always read. Kevin points to interesting science articles (The brain starts to eat itself after chronic sleep deprivation), finds provocative quotes (“Give me six hours to chop down a tree and I will spend the first four sharpening the axe.“), and reviews products and apps that he finds useful. — MF

Get the Recomendo weekly newsletter a week early by email.

-- Kevin Kelly, Mark Frauenfelder, Claudia Dawson 06/25/17

23 June 2017


Legos in Bulk

Cheapest way to buy Lego bricks

Legos are a forever toy. Without moving parts, they last a really long time, can be assembled and reassembled in infinite arrangements, and have a long-term appeal even for old kids like me. But they are relatively expensive if you want to make something big. Seeking out the best discount boxes from Lego, or from resellers, they cost about 10 cents per piece. Smaller sets are even more expensive. I wanted to build a wall of Legos, but there was no easy way to buy standard bricks in bulk from Lego. So I went to the Chinese and found a whole army of knock-off Legos from China available on Amazon. They cost about 2.5 cents per piece.

The best option for the standard blocks are packs of 1,000 bricks for about $25. I recently needed 15,000 pieces for a 25 foot tower of Lego I am building, so I bought bulk packs from five different knock-off vendors. All five sources sell bricks that are pretty indistinguishable and interchangeable with authentic Lego — and with each other.  They are about 99.8 percent exact. When building my tower, once or twice I notice a very slight gap between one level that would not be there in genuine Lego. Also there can be very slight variation in color, especially between vendors; the yellow of one is not 100% the yellow of the other. There is a slighter variation of color within one source but it is not noticeable unless you build in a solid color. For 99% of most uses, these subtle variations will not be a problem, and the fit will not be a problem. Reviewers on Amazon who actually counted the number of pieces included verify that you do get at least 1,000 pieces. Out of 10,000 pieces so far I’ve only encountered 6 pieces that were malformed.  Some Amazon customers have complained that the larger bricks are less durable than the real thing when disassembling, but I am not joining and unjoining parts, so I can’t tell. For my purposes these work great.

So which knock-off to use? Because these bulk bags are sold as “random” selections it is hard to say. Toysopoly included more browns and orange bricks than the other brands, but I detected some color variance from other brands. Big Bag of Bricks had a lot of purple. They also had a pack with lots of Lego pastels  — light blue and pink. I used Play Platoon and Wonderbricks and Brickyard and didn’t notice anything special but a random assortment, with different amounts of gray, or roof tiles. None of these include any special items beyond basic bricks. Any of them will be perfectly acceptable substitutes for real Lego if you need large quantities. At the time of my purchases, Big Bag of Bricks had the cheapest prices, at $25 per 1000 pieces.

Prices go up and down. I use CamelCamelCamel and The Tracktor to track the lowest prices for these packs and buy whichever one goes lowest, which has been Big Bag of Bricks in recent months.


-- KK 06/23/17

22 June 2017


Slow Motion Reality [Maker Update #39]

A roundup of the best maker projects of the week

This week on Maker Update: Maui Makers, slow motion frames, the launch of Maker Share, zip-tie lamps, rocker switch walls, magnetic wristbands, and a cheap way to brand wood. This week’s featured Cool Tool is the MagnoGrip magnetic wristband. (Show notes)

Have you ever held screws or nails in your mouth as a way to keep them nearby while working on a project? This week for my tool review I’m going to show you a better solution. This is the MagnoGrip, it’s a $14 magnetic wristband available on Amazon. I found it on the Cool Tools blog. And if you pick one up using the link in the description you help to support my videos and the Cool Tools Blog.

This is a low-tech but useful tool. It just velcros around your wrist and includes embedded magnets to hold whatever odds and ends you need to have handy. The magnets aren’t super strong, but just strong enough to hold a handful of nails or screws. I imagine if the were much stronger it might actually be a liability.

It’s a durable design, made from thick 1680 ballistic polyester. So having screws and nails rub against it over and over shouldn’t be a problem. The inside that touches your wrist has this nice, breathable padding.

The original Cool Tools review of this comes from Sue Bettenhausen, who recommended it for nails and pins, putting together her son’s bike, hanging pictures, or shortening pants. I also see several Amazon reviews from people using these while doing car repairs to prevent bolts from falling into the engine.

The wristband comes in a few colors, but red seems like it provides the best contrast so screws and nails don’t just blend in.

-- Donald Bell 06/22/17

22 June 2017


Bulk Pregnancy Tests

Fast and accurate pregnancy test for a fraction of the usual cost

People don’t generally learn of the existence of cheap bulk pregnancy tests until they are trying to get pregnant. I wish I’d been given a pack of these when I first started having sex. At $7.50 for a pack of 20 (instead of $10 for one at a drugstore), you can put your mind at ease instantly, for a less than fifty cents. Why not make it part of your monthly self care routine?

These would be especially useful for those using the seasonal pill, injection, IUD, or other forms of birth control that alter your cycles, and for people with irregular cycles (which is most of us, at times). You hear stories of people on the pill finding out they’re going to have a baby in three months, because they just didn’t think it was possible. Don’t let it happen to you. Knowledge is power. The sooner you know about a pregnancy the more options you have, and the better you can take care of the health of your offspring if you choose to carry.

-- Reanna Alder 06/22/17

21 June 2017


Interview with Tim Ferriss, Author of Four #1 NYT/WSJ Bestsellers

Cool Tools Show 077: Tim Ferriss

Please consider supporting the Cool Tools Show podcast on Patreon! – MF

Our guest on the Cool Tools Show this week is Tim Ferriss. Tim was listed as one of Fast Company‘s “Most Innovative Business People” and one of Fortune’s “40 under 40.” He’s an early-stage technology investor and advisor (Uber, Facebook, Alibaba, and 50+ others) and the author of four #1 New York Times and Wall Street Journal bestsellers, including The 4-Hour Workweek and Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-Class Performers (reviewed on Cool Tools). He is the host of The Tim Ferriss Show podcast, which has exceeded 150 million downloads and has been selected for “Best of iTunes” three years running.

Subscribe to the Cool Tools Show on iTunes | RSS | Transcript | Download MP3 | See all the Cool Tools Show posts on a single page
Tim’s Tools:
Nau Vice II Blazer ($280)
“It is a jacket that I roll up to travel with constantly. What makes it unique is a number of different factors. You can roll it up and throw it on a black t-shirt and you look like you’re ready for a business dinner or a formal or semi-formal occasion, so it saves me the trouble of packing a lot of collared shirts, for instance. … Plenty of pockets, but there are lapels so you can get away with murder. You can wear it in a light rain or you could wear it at a nice dinner. It is an incredibly flexible piece of clothing. … The fabric blends that are used tend not to wrinkle, number one. Two, it has folds and pockets and lapels that for whatever reason, make any wrinkles less noticeable. …I get it down to about a roll that is 10 inches in length and about three to four inches in diameter.”
Logitech Ultra-Portable keyboard ($34)
“In my bag of tricks. I have a Logitech bluetooth keyboard and just to put this in perspective, it is slightly larger than say a paperback book, like a 5 x 8 inch trim paperback book. It is narrow enough that I will very often stick it into a journal to protect it and it’s probably the width of eight to ten paperback pages. And it holds a charge very, very well so I use this often times if I have any issue with my laptop. I can pair it to my iPhone, which is a larger-sized iPhone and balance the iPhone or lean it against a glass of iced tea and I can get any writing done that I need to get done. Also, if I feel like taking a day trip, but not taking this backpack, which is one of my main pieces of luggage and stuffed full of stuff, it’s kind of heavy, I can take the keyboard and my iPhone and head off to some coffee shop say ten to 15 minutes away without carrying all of my gear with me.”
Mack’s Pillow Soft Silicone Earplugs ($4)
“[Max silicone earplugs] unlike foam earplugs are not inserted into the ear canal and then left to expand. These are effectively smeared over the ear opening and you have in all caps – DO NOT INSERT, JUST COVER EAR OPENING. These I found through swimmers in fact and they are very waxy and almost look like candies … some type of caramel, but they’re white colored and I find them to block sound much more effectively than any type of foam ear plug … I definitely reuse these. I would say if I had to guesstimate, I would say four to five nights and then they start to lose their adherence, because they get less tacky over time. The most important feature or benefit that I don’t want to overlook is that as someone who tends to rotate from back to side, so I sleep on my back and on my side, foam earplugs will very often hurt. They’ll get pushed into your ear when you roll onto your side. That is not the case with these.”
Cabeau Evolution Memory Foam Travel Pillow ($40)
“Most of [travel pillows] are very uninspiring and even less effective for helping me sleep. What I found is not only does [this pillow] help me sleep if I’m sitting upright, but it’s also very, very helpful for getting to sleep when I’m laying prone, whether it’s on an airplane or even a hotel room, if the pillows are of dubious quality. … It’s self expanding, so you can think of it almost like a sponge-like material that you can compress down and then when you release it, it inflates or I should say rather expands automatically. … It is a horseshoe-shaped, if you imagine a horseshoe being hung around the back of your neck, that is the shape. It can clip in the front and the design is such that there’s a ridge that supports basically the occipital area at the base of the skull. … It’s the most comfortable neck pillow that I have found.”
Screen Shot 2017-06-20 at 4.31.28 PM
Apnea Trainer ($3)
“So another app that I use a lot when I’m traveling and I use it at home as well is called Apnea Trainer and I don’t use it for it’s tended use. I have an off-label use. Apnea Trainer is used by people who are training for free diving and want to improve their breath hold times. There are different types of tempos that you can use for different types of training, so there is Pranayama breathing. There is the apnea breathing which would say be a ratio of inhale, hold, exhale or inhale, hold, exhale, hold. … What I found is that if I only have, say five to ten minutes and I don’t have time for my usual morning meditation, which I like to do, that five to ten minutes of breathing training with a voice that will countdown for you is very much grounding for the rest of the day.”

Yellowtec iXm microphone
“This is a microphone that can capture just tremendous quality of audio. It automatically equalizes and it has playback buttons on the side. It all records to an SD card that’s inserted in the bottom and it’s battery powered so that you can take it on the road. Everything is contained and housed in this one unit, that then goes in a tiny zip-up bag, so this just lives really inside my backpack, so if I don’t have a chance to bring more gear or don’t want to bring more gear, I can use this anytime, anywhere and shizam.

Kevin’s Tools:
Screen Shot 2017-06-20 at 4.31.11 PM
myTracks (FREE)
“What it does is it makes a GPS log for our travel, wherever you’re going and the important thing is it does it without having to have cellular service somewhere because in these foreign countries, I don’t normally turn my cell phone service off, but it’s still getting GPS signals and just with that information, is enough to create a GPS log of a journey. The advantage to that is one, you have a record of your journey and you can import into Google Earth just with a KML format, but more importantly, if you have a camera that has a clock as they all do these days, you can synchronize your clock to the local time and you’ll have a way to time stamp and geotag your photographs.”

Cheap compact umbrella with top spray painted silver to reflect the sun, keeping it cooler
“I just had an ordinary cheap, black, really compact umbrella that I carry in my little camera bag all the time and I spray painted the top of it silver so that it reflects the light and it makes it a little bit cooler on the inside, because just with a black umbrella, it tends to absorb that infrared and reradiate it back down on your head. By having a silver reflective layer, it bounces at least 60% of that back into the sky and it’s a lot cooler. There are versions of the silver umbrella that are extremely lightweight. They’re not as collapsible as the ones I have, but they’re made for hiking. I think there’s called the Silver Dome if I’m not mistaken and they weigh only a few ounces, and people out west, if you’re climbing even into high altitudes, a lot of the long-distance hikers now carry an umbrella, portable shade and they walk along under the shade. Shade follows them and it really makes a huge difference when you’re backpacking because you can really work up a sweat in a hat. It doesn’t allow your head to cool off, but the umbrella does.



img 06/21/17

One-string Canjo

Easily build a one-string canjo (tin banjo) instrument

img 06/20/17

Tool of Titans

Best self-betterment tips

img 06/19/17

iNeibo Silicone Travel Bottles

TSA carry-on approved refillable squeeze bottles

img 06/16/17

Maker Update: My Top 5 Summer Projects

Our weekly maker project update

See all the reviews


Recent Questions Answers Given Answers Favorited

Affordable presentation design company

Where can I get affordable presentation design service in usa?

3 0
3 0

Duplicate Photo Finder

I have a lot of photos that have been backed up in a lot of places.  I managed to collect …

8 0
See all the questions


img 06/22/09


Realtime budget overview

img 07/21/11

Zenni Optical

Best cheap eyeglasses

img 06/23/03

Diagrammatic Chart of World History

5,000 years of history in one square meter

img 09/17/03

Stretch Wrap

Quick self-binding wrap

img 09/12/03

Snorkel Hot Tub

Wood powered hot tub

img 08/19/13

Weber Rapidfire Chimney Charcoal Starter

The best way to start a charcoal barbecue

See all the favorites



Cool Tools Show 077: Tim Ferriss

Picks and shownotes

Cool Tools Show 076: Nick Bilton

Picks and shownotes

Cool Tools Show 075: Eri Gentry

Picks and shownotes

23 February 2017



CargoRAXX – unrecommended

This appears to be a shill review. Many thanks to Cool Tools reader Matthew Connor for looking into this. He wrote:

Meaghan Hollywood works for CargoRAXX. Meaghan Hollywood put a review up quasi-anonymously on Amazon. A similarly worded review is now anonymously on KK.org.

On Amazon there are two reviews for the product (https://www.amazon.com/CargoRAXX-S1A-Interior-Management-System/dp/B01A6X4MBS). Neither is attributed by name but the one from January 18th, 2016 refers to “my Tahoe” and read similar to the KK.org review. Let us suppose the author is, in fact, the same person.

Clicking on the name for the review – merely “Amazon Customer” brings up their profile (https://www.amazon.com/gp/pdp/profile/A1CF94IIWSAE00/ref=cm_cr_dp_pdp). This profile contains one Wish List on the left side. Clicking on it revels – the name of “Amazon Customer” – it is Meaghan Hollywood.

Ok. I believe at this point the author of the KK review and the author of at least one of the two reviews on Amazon are in fact the same person and that person’s name is Meaghan Hollywood.

Here’s the kicker, CargoRAXX has a website with a blog feature – their blogger’s name is Meaghan Hollywood. (http://cargoraxx.com/5-reasons-re-organize-suv/)


Cool Tools is a web site which recommends the best/cheapest tools available. Tools are defined broadly as anything that can be useful. This includes hand tools, machines, books, software, gadgets, websites, maps, and even ideas. All reviews are positive raves written by real users. We don’t bother with negative reviews because our intent is to only offer the best.

One new tool is posted each weekday. Cool Tools does NOT sell anything. The site provides prices and convenient sources for readers to purchase items.

When Amazon.com is listed as a source (which it often is because of its prices and convenience) Cool Tools receives a fractional fee from Amazon if items are purchased at Amazon on that visit. Cool Tools also earns revenue from Google ads, although we have no foreknowledge nor much control of which ads will appear.

We recently posted a short history of Cool Tools which included current stats as of April 2008. This explains both the genesis of this site, and the tools we use to operate it.

13632766_602152159944472_101382480_oKevin Kelly started Cool Tools in 2000 as an email list, then as a blog since 2003. He edited all reviews through 2006. He writes the occasional review, oversees the design and editorial direction of this site, and made a book version of Cool Tools. If you have a question about the website in general his email is kk {at} kk.org.

13918651_603790483113973_1799207977_oMark Frauenfelder edits Cool Tools and develops editorial projects for Cool Tools Lab, LLC. If you’d like to submit a review, email him at editor {at} cool-tools.org (or use the Submit a Tool form).

13898183_602421513250870_1391167760_oClaudia Dawson runs the Cool Tool website, posting items daily, maintaining software, measuring analytics, managing ads, and in general keeping the site alive. If you have a concern about the operation or status of this site contact her email is cl {at} kk.org.