Mirror in bathroom so can see the back of head. How To Hide Unsightly Wall Panels - tutorial shows how to attach hinges to a picture and wall so switches, access panels, etc. can be hidden, yet still accessible. This is not recommended for thermostats!
A space for your secrets. The latest project by Japanese studio Torafu Architects may look like a standard floating shelf, but it actually contains a slim secret drawer that can be opened with magnets.
Use drawer slides; mount the drawer on the wall; attach the shell to the slides, so it pulls out. Shifty Desk / Hallway Stand by Daniel Schofield This is such a great storage idea! It can be a shelf and a drawer.