Comment by vlachen

There are ways to get around the "oh crap, I forgot the bags" depending on how the store does things. For example, the Aldi stores I shop at in the US have a couple of cages with empty boxes in them. The boxes on the shelves get emptied and then the employees round them up and drop them in accessible cages/crates. This allows a person to choose to either buy a paper bag, buy a reusable bag, or make due with a couple of free boxes that were going to be disposed of anyways.