On my way to work yesterday, I stopped to get gas. As I was getting ready to swipe my card, I noticed the amount of purchase and gallons. However, this individual didn't even get a gallon of gas. It was pointed out that perhaps they were getting gas for the lawnmower or weedeater. Aren't those containers, like 5 gallons? The few people I have mention this to have told me stories - back when gas was much cheaper - how they had to find all the spare change in the car so that they could make it a little further.
The question is - do you let it run till it's almost empty or do you tend to keep it full? :)