As I humbly submit 10 items or less is fine and when you have 11+ items you should go to a full service line. Self checkout is a great idea if you are confident in using it. It is simple point the upc at the red light and it adds the item. The real beauty of self checkout for me is the speed and no clumsy interaction with a cashier and the person who bags. I scan, bag, and leave. One of the hiccups is that if you have too much stuff to fit in three bags then go to a full service cashier. Aren’t we retired?
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