Grocery stores -- the positive side
At big grocery stores with loyalty cards, I like to be able to offer to swipe my card for people who don't have one. Once I was behind a man who didn't speak much English and was only buying a gallon of milk but was counting it out down to the penny. The cashier tried to get him to ask me if he could borrow my card, but he didn't quite get the idea. It was so easy to save someone a dollar or two! It would have been nice to do more, but everything starts small.
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