Amazon's Patent Application Publication
I don't know about you but my experience of picking up stuff from stores has always been a disaster. It's either I go to the store and they only start working on my order or people don't pick up their orders and cause a backlog that confuses the staff. Despite having the technology, customers and store associates still spend an unnecessary amount of time waiting.
Apparently, Amazon also recognizes this problem and hopes to solve it by filing this patent. But wait, isn't Amazon a delivery company? Now that's the interesting part.