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.
Stop & Shop in the US does this (or at least it did? I never used it so I barely pay attention to it lol). There’s like a wall of handheld scanners you can pick up when you enter and a little place on the cart for them to go in. You can scan and bag your stuff as you go and then pay at a special register.
They definitely still do it at both locations in my town. I shop for one, so I’ve never felt the need to try it out, but I see other people using them regularly.