I'm shamelessly advertising for one of my heroes:
Alastair, a young British fresh out of college 6 years ago, decided to skip the conventional job, and rode around the world instead, on a bicycle. I started following his trek shortly after 9/11 until the very end last year. I wrote him several times asking him to write a book.
Well, it's here, and I just finished reading it. Fascinating and I recommend it without any reservation. It's fun, it's real. It's not available in bookstores, only on Amazon.
Oh, and he spent less than 7,000# in those 4+ years. That's about $8/days. Better than the best on this board, right?