Airline drink carts
I cut a bunch of plywood shelves for the airline drink carts. I found out they were perfect for storing stock materials such as steel, aluminum, brass, delrin, etc.. They would have more use in my garage than at the office. I got some plastic bins from Ikea to hold the materials and the carts let you get access from both sides. Plus, they have a handy work surface on the top as well as casters that have a brake.