How much stuff does a person really need? This is a question Dee Williams has been chewing on for years, and after a pivotal trip to Guatemala a few years ago, her conclusion was: not much. She’s lived in an 84 square foot house ever since, limiting herself to 300 possessions “from a pair of heels and a toothbrush, to a Ford pick-up and a two-ton jack.” Now she and business partner Katy Anderson are helping others do the same. They recently launched Portland Alternative Dwellings to build eco-friendly houses, small enough to fit on wheels and big enough to let you live your dreams.