The amount of time in years for an investment to double is roughly equal to 72 divided by the annualized interest rate. – Nathan Odle, Real Estate Developer, Civil Engineer, Commercial Contractor, USA
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.