Calculate Your Car's 'Miles Per Dollar' Instead of Miles Per Gallon
by Beth Skwarecki from Lifehacker on (#62VQ6)

Car mileage is usually discussed in miles per gallon," which generally makes sense: We calculate car usage in miles and pay for gas by the gallon. But when it comes to budgeting, we don't always care how far we can go on a specific amount of a specific petroleum product. We care how much it costs. That goes double if...