So cool there are other nomads here! Thats how my business partner and I got into the affiliate industry. We were working remotely for a large company for a while, and travelled for over a year. Then layoffs hit, and we decided to to use our web skills to run our own sites.
We're still working on building our sites to the point where we're totally free to do this, but we're getting closer little by little. As others have said, if you're willing to rough it a bit, you can live well on not much money! It also helps to be a young person in good health with zero responsibilities
I'm from the U.S., but I'm currently in Mexico until mid-November.