Harvey! You'll have to tell me how much it costs you after.
I'd be keen on hitching in Japan.
Just sleep on the side of the road, or a train station with the homeless people, if they can do it, so can you!
Im looking for someone to join me on the beach in Korea this summer. Sleeping on the beach is fun, so you should do that if you are in a coastal area. You could always do your sleeping on whatever transport you take.
What about those special tickets for 11,000yen? They are good for 5 non consecutive days. You could use that for your big long journeys, and stick to hitching the rest of the time.
That way you can travel at night sometimes and use that as a nights accomodation. Heheh is 5 nights sleep enough for that length of time?
Manga Kissa are pretty comfy at times too.