On my travels across Japan, I've discovered the greatest thing ever. Couchsurfing.com is fantastic. I went to the Southern Japany and stayed with someone teaching English down there (names and specific details have been omitted to protect privacy and security). There wasn't much furniture, so I slept on the floor. I promised not to turn into a homocidal axe murderer.
Anyways, we had a great time together (or at least I did). Anyways, this is a cool site. Everybody check out couchsurfing.com!