Daniel Suelo quit money 12 years ago. He's been living in a cave in Utah, surviving by eating wild food and roadkill. He has no job, doesn't take welfare, and he doesn't ever use money.
The BBC took a closer look at Suelo's life and talks to Mark Sundeen, the author who wrote a book about Suelo. It's such a fascinating story, and it's almost unbelievable that Suelo managed to live 12 years without spending or earning a single dollar. Just as amazingly, you can actually keep up with Suelo at his blog, Zero Currency. [Mark Sundeen]