Self Checkout
I think self-checkout should be reserved for those with only a few items. Like not more that you can carry in your hands. It's come to my attention that those with full carts really suck at self-checkout. I love it when women scan the entire full grocery cart with one hand, while holding their wallet in the other. I've seen people on their phones the entire time, relegating them to one-handed also. :mad:
Make access to the self-checkout area too narrow for a cart to fit through.