The gas there is 5 to 8 cents cheaper but today it was only 1 cent difference so Shell was a bargain

Like I said with a BP card you get a rebate of 5%. Other major gas companies offer similar cards.

I don't recommend debt as a lifestyle to anyone, but a credit card with 5% rebates on gas as long as you pay it off every month is a pretty sweet deal. (That's 15 cents on 3 dollar gas)