Website Laughing Squid points out to this interview with ABC News Radio with Andrew Hyde, a successful entrepreneur, founder of Startup Weekend, and organiser of the TEDxBoulder conference, who owns just 15 things and is currently homeless. From the Laughing Squid page:

Mr. Hyde owns just 15 things and is currently homeless. After leaving his job as community organizer for the New York-based start-up incubator TechStars, Mr. Hyde sold all of his possessions and travelled the world. He now moves through the New York and Silicon Valley technology scenes, mentors young companies, and is currently building a business that creates art from old vinyl records.

The above image is from Andrew Hyde.