There's a grassroots movement in tiny homes these days. The real estate collapse, the economic downturn, burning out on 12-hour workdays - many people are rethinking their ideas about shelter - seeking an alternative to high rents, or a lifelong mortgage debt to a bank on an overpriced home. Homes on land, homes on wheels, homes on the road, homes on water, even homes in the trees. There are also studios, saunas, garden sheds, and greenhouses...