This one isn’t quite as useful as some of the other tricks, but fun nonetheless.

Fuel Frog will track your gas mileage. When filling up at the gas station, just enter in your miles, price and gallons and Fuel Frog will process the data and determine your miles per gallon. I’m pretty sure they’ll track it for you too.

Not going to use this one much as we’re currently a one car family. Sara actually fills it up as much as I do, so it’s a little harder to do this if I’m not the one filling it up every time. Once we get a second car, I’ll probably start doing this one… more out of curiosity.

Check it out here.