I recently saw this idea on The Nate Berkus Show and had to share. This has been on my to-do list so one day I could recreate this brilliant idea. It's a classic example of reinventing items and making a new purpose for them. These 8 wooden crates were attached to each other randomly and put on casters for rolling. The individual crates transform into a single unit bookshelf and can also serve as a room divider as well.