Just read this in an article but it seems to be pretty usefull. You can by $50 speedway gas cards for as much as 48 bucks ( lower on ebay). Some of these cards you can recharge with a credit card... which if you smart enough you use a credit card that gives you a rebate on gas purchases which could lead to recieving up to 9% off!!

"Speedway sells a 50 dollar gift card you can get for 48 dollars. That's already a discount. Then if you reload the card with the right credit card you can double dip. If you reload the card with the Citibank card I talked about ... your total savings on a three dollar gallon of gas is about 26 cents or nine percent. It all requires some creative thinking .."

http://www.wkrc.com/news/local/story...A-031EDC6A0E68