Let's be real though, you are not likely to stop driving anytime soon, start riding a bicycle, or run out and buy a new energy efficient hybrid. So what's left? If you have a good credit rating, our favorite is the Gas Reward Credit Card. There are numerous cards available from different issuers, each with their own particular strength and weakness. Some cards are only good for a particular brand of gas while others give benefits on any gas purchase. Most cards will give a rebate in the 2% to 5% range on a gas purchase with rebates also available on non-gas purchases. Savings are savings and 2-5% rebates can add up quickly. If you spend an average of $30 per week at the pump, at 2% that is $6 per week in savings. Multiply that by 52 weeks and you reduced your gas costs by $312 for the year. Stay away from cards with any annual fees and pay your balance off each month.