Warehouse robots!

Kiva systems has revolutionized the way stock is picked from warehouse inventory to fulfill an order. It makes use of robots that autonomously (actually under control of a central computer) bring the shelf of goods to the packer. The system not only moves inventory to packers as needed, it also sorts and organizes inventory based on its popularity and can operate on different warehouse levels.

You have to see the video to understand the awesomeness of it all.