Photo via Gizmodo
↑ Here's a technique borrowed from the world's thinnest house: if there's not enough space for a fancy-pants bathroom (the kind with room for a shower and a sink and a toilet) one can always make the whole room the shower stall. Sure, bathing each morning will be tricky to do without disintegrating all of the toilet paper, but the guy in the 4-feet-wide Keret house in Warsaw, Poland, presumably makes it work.
