Honestly, I've wanted a system for a while where shops can provide a map, and I can search for an item and it will show me where in the shop that item is. I don't think I've ever been in a shop big enough where I'd need satnav to tell me how to get there though, is that an American thing?
Things that would absolutely be an amazing QOL improvement for any shopper. But they won't let you have it because they WANT you to bumble your way around a shop. They don't want you to know where things are. That's why they move shelves around seemingly at random.