I typically always try even if it's slow and there's not many outside. It just makes one person's job easier. Some could argue it eliminates a person's job but some places have these things pile up like zombies in a horror movie. The only place I've ever seen eliminate this mess is Aldi and their quarter-locks. We can do this for twenty five cents, but not to help a person doing hard-labor? Humanity should be better than this.
Do you try to grab a cart before you go in a place?