I often go to the supermarket called Hipercity which nearby my office and there is one fast line for a customer who buy less than 10 items.
On Sunday night, there was so crawded.I was also on the line and waiting for my turn. And one of a family in front of me had many stuff, it was obviously over 10 and another man told them here is the fast line.
Then, they quickly split it up into 5 baskets and pay 5 times!! that took longer and I was astonished by that great idea. Good grief!