I was intrigued today when I learned that my local convenient store is giving people some money off of their price for gas if they pay with cash versus using a card. If you pay with a ten they will bump you up to 10.50 worth of gas, which is pretty good. It got me think as to the reason, though, and I was really not sure. Clearly they just want to have cash, but I am not sure why. It is a pretty good way to get something extra for your money though. Does anybody else see this where they live?