Couch Surfing

Anyone heard of couchsurfing.com? It is a network of people in different areas who let you stay at their place for free for a short amount of time. Well, and, of course, the people traveling who stay at their houses. Basically you could travel around the world without having to pay for hotels. I might try it. I just create a profile, so people can stay here until I sell my house. Then once I get rid of my house, I might just travel around the country for a while.