Aldi is unique in the fact that its shopping carts operate with a pay-to-use system -- though that's caused a bit of a ruckus ...

This sprawling Silver Spring thrift store offers endless aisles of clothing, books, housewares and treasures where three hours disappear in the blink of an eye.

Not all cart spotting is negative. Some people take pictures of other shoppers’ carts to get ideas for their own meals. If a ...