One page site/app + advertising revenue?
goofygrin: OK, I cobbled it together this afternoon so HN gets an early (and ugly, designless) preview.http://www.mpghead.com/Basically allows you to determine how much you'll spend different from one vehicle to another just for gas.If you get 14mpg and you pay $3.50 a gallon, you're spending $0.25 a mile!  It's almost cheaper to take a taxi!