Meet Nissan's "Intelligent Parking Chair" concept: A self-driving office chair that can drive itself around the office, tucking itself away under a desk when not in use.
Check it out:
The Intelligent Parking Chair uses cameras, a 360-degree swivel base, and some self-driving car know-how to get around. It waits for a clap, and then searches out a table under which to park itself. You need to have four special sensor-laden cameras in a room to help the chairs get around, though.
In the video, you can see some potential uses, like a guy clapping to make every chair in a conference room put itself away: