Ever heard of theses tiny houses /out/? I think they're really neat, the whole idea around them is living within your needs. They're pretty cheap too! You can make one for less than 20K and there's tons of options for them. Just imagine parking this somewhere deep in the woods or on a quiet beach to chill in for a while. Wouldn't that be awesome? I'd add solar panels and a composting toilet to be green. Hell, maybe even carry some heirloom seeds to start a small garden for veggies. A guy lives in my town with one, never talked to him though.

ITT Tiny houses: thoughs, general info, and any personal experience with them