There are 7 simple steps to help you save up to 25 cents per gallon or more on gas purchases using gas rebate credit cards.

1) Know the rebate percent. It sounds simple but some cards give a 10% rebate and others only give a 3% rebate on gas purchases. Most cards give a 1% rebate on non-gas purchases. You should pick the card that pays out the highest rebate.

2) Know the limits of the rewards. Some cards only pay out a rebate on the first $1200 you spend each year and other cards have a limit on the rebate itself, such as giving back $50 or $400 per year.

3) Apply for new cards when you hit your rebate limit. There is no law limiting you to only one gas rebate card. After you've hit your rebate limit, that gas reward card isn't doing you any good so you should apply for a new card as soon as possible.

4) Apply for cards for specific gas stations in your area if any are available. This type of gas reward card typically has the highest rebate percentage. The Chase Hess rebate card gives a 10% rebate (that's 25 cents off at $2.50 per gallon) at Hess gas stations, but that won't help you if you don't live in an area with a nearby Hess gas station.

5) Be responsible. Pay your balance in full as soon as you receive your statement. A 4-10% rebate is worthless when you have to pay 17% or more in interest charges. This doesn't apply if the card has a 0% Intro APR and you are within the intro period; however, the intro period doesn't last forever so you should still pay your full balance monthly.

6) Transfer your balance if necessary. If you find yourself in debt when the intro period is almost over or when you