Love this. These are some seriously good, non-obvious pieces of advice.
Thought it would be worth sharing (for those new to cryptocurrencies) that you can often side-step ATM fees with Bitcoin, specifically: https://localbitcoins.com/. There are also Bitcoin ATMs in many countries (although the fees vary): https://coinatmradar.com/.
RE: $1,100 a month to travel around the world, July 2016