Pretty much the title. Like, get those handheld scanners and attach them to the carts. I scan items as I put them in, roll up to a “register” where the cart is weighed and verified by a cashier. I just hand over the cash then leave. Or even better, install load sensors in the cart.
Usually I like to pack my groceries into my boxes as I get them into the cart. Keeps things orderly and neat and I also don’t buy more than I can carry home. But this means I have to unpack them to place on the belt then pack them all over again after paying. It would be kinda nice to just pay by the cart load.
At least in Germany, at a lot of Rewes (supermarket chain), this is absolutely a thing and very common. You can place the handheld barcode scanners in a specialised holder on the cart handle and then scan as you go, and neatly package all your stuff before going to the checkout and paying at a terminal. If even Germany has got this by now, then every other country on the planet surely does too lol.
Do they make it easy to put something back if you change your mind?
Yup, you can just edit the amount of items you scanned. Also makes it easier to “scan” an item in bulk.
They dont check the cart weight, instead they just randomly pick out people where they go through their scanned items and check that nothing else is in the cart. I’m being checked about once every 20 times I go.