Comment Re:Visas are going to be an issue (Score 3, Informative) 273
Check price and length of Visa. It varies from country to country. Europe is mainly EU(Schengen) and three months is the standard tourist visa. Then you have to leave for three months before coming back. For American citizens EU is free. There is also other countries around EU that is cheap.
As long as you do not get paid from the EU you do not need a work Visa.
I travel SE Asia a lot and live in EU. Theoretically it is possible to do what you want. WIFI and electricity is available most places. If you find a quiet corner in a cafe they will love you for spending money all day even if it is just coffee.