To find your way on a cloudy day, place your knife point-down on your thumbnail. Turn the knife slowly and you’ll see a faint shadow. When the shadow is thinnest, you’ve found east if it’s early morning, north if it’s midday, and west if it’s dusk. — Barak Rosenshine, professor of education, Urbana, Illinois
A cool tool is anything useful that is superior to comparable items. If you think this tool is inferior suggest a better one. You are welcome to insult a tool, but comments containing insults to individual people will be deleted. Corrections of fact are always welcomed, if stated politely. Recommendations of better tools are dearly wanted and may be elevated to the front page.