The only time I don't return the cart to the corral is when I'm taking my elderly mother to the store, and we park in the handicapped spots. I always leave my cart near there, because older, handicapped people often like to grab a cart in the lot, and use it like a walker to get to the store.

Likewise, when we arrive, I jump out and grab the nearest cart as she's getting out of the car, and I can wheel it over to her. It's nice when someone has left a cart in the handicapped zone.

This is a handicapped thing, you have to be part of that world to know about it.