When furniture can flatten out, it saves on space both in your home and in shipping. That's why we like this design for collapsible stools by Takashi Sato Design:
The Pata stool is made strong by plywood and made fold-able by felt. Flatten them when shipping or to stow them away when not in use. Perfect for small space living or those who move frequently. The design of the Pata doesn't appear to be for retail sale, but we love the idea and hope that it's in production someday soon.
Images: Takashi Sato Design