Stretch Your Gas Money

GasBuddy.com, as well as GasPriceWatch.com, identify the lowest-priced gas in your area. Of course, if you drive out of your way to fill up, you may lose the benefit of the savings.

The BP Visa Rewards card earns 5% cash back on BP gasoline purchases, 2% on travel and dining, and 1% on everything else. The Chase PerfectCard MasterCard returns 3% on gas purchases and 1% on other purchases.