In the Netherlands, the two leading supermarket chains have handheld barcode scanners. You can walk around the store, scan whatever you put in your bag as you d

In the Netherlands, the two leading supermarket chains have handheld barcode scanners. You can walk around the store, scan whatever you put in your bag as you do it, and then the cashier just reads your scanner and charges you. There are random spot checks of course, but I don't think this would work elsewhere, not with the high level of citizen trust that there is here. I'm sure they lose some money to people enticed by easier stealing, but the flow of people is so much faster that it's probably worth it many times over.