Do you know of any jobs that can be done from home, online, or while traveling?

I am finishing up my MPhil degree in Linguistics at the end of June. I am going to be moving back to the States after that, to NYC.

But first I want to stay here and travel a bit in Europe and then visit some friends back in Kansas, in Chicago, Austin, and (hopefully) Hawaii. I was hoping to make this last from July to October, but the problem is, I have no money. At all. Who does, really?

I don’t need much money, mostly for cheap food and traveling costs. So, does anyone know of any jobs that are done online? Or from home? Or really temporary jobs that are easy to get in most cities/towns?