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.
Walmart spent millions on rfid trying to do this. Howevera cart full of razor blades would always not read something so they gave up.
as others have said what you ask for evists - but only where most people are honest enough to not cheat. Where stores don’t trust everyone the cost of verification is more than any savings.