Well, Shell made me an offer I can't refuse. If you buy gas at a Shell station using your Shell card, you get a 5% rebate on your gasoline purchases. Originally, it was not much money, but we did it because my husband drives over 60 miles each way to work. Now, we're getting almost 15 cents per gallon off the price of gasoline. I used to see the banners at my local Shell station, trying to get people to sign up. Coincidentally, the offer doesn't seem to be out there any longer.