Do you always look for the cheapest gas? Is your cheapest gas at Wal-Mart? If so, do you also use your Wal-Mart Gift card?
I keep a gift card with some money on it at all times just for gas at the Wal-Mart gas station. If I need to gas up I do look for the cheapest gas. If that is too far to go I usually end up at my local Wal-Mart as that is the cheapest after the extra 3 cents off per gallon when you use the Wal-Mart gift card. I would NEVER get Wal-Mart Gas without the gift card!