I was very intrigued last week when I saw a headline in USA Today that said: “How to Travel the World on Zero Dollars a Day.” The article told the story of a guy, Michael Wigge, who traveled 25,000 miles over a 150-day period in 2010 without spending a penny. Wigge’s journey spanned across four continents – from Europe to Antarctica – and 11 countries, and he didn’t spend a cent.

Even though I co-wrote the book on traveling for free, with Keith, I wanted to know: How the hell did he do that? Not spending one cent?