We order most of our groceries online in our house, but when we’re short on something or have forgotten a vital ingredient, we go to a Sainsbury’s supermarket ten minutes down the road. There are two tills staffed by cashiers and three of those machines that make you go boop: you have to scan the items for yourself, passing their barcodes over the laser light, and the machine lets you know it has logged the item with a “boop” sound.
I work a fair bit with public libraries, which also have things that make you go boop these days.



