...in '82, spent 6 weeks making my way down from Tokyo to the Rykyu Islands. Stayed in hostels, micro hotel rooms with barely 1-1/2 tatami, minshuku, ryokan and even a 'love' hotel!
I was struck by the small spaces, but also how the architecture focused my experience on a more pleasant view, alcove or tiny garden just outside the room.
And the concept of a multi-purpose space seemed built into the Japanese psyche...
Wake up, roll up the futon and place it in the cupboard. Place a few cushions, a small table, and the space is now prepared for a meal, or work. After the evening meal, open another panel, and there was a TV, and the small heater under the skirted table kept you warm through the evening, until it too was put away, and out came the bedding.
Thanks for that great collection of small spaces!