Camping in the City

Camping doesn't necessarily have to be out in the woods somewhere, with some imagination, some might call homeless, but I refer to as, "Urban Camping." I'm thinking at this point in putting together a guide, maybe call it "Urban Camping on a Shoe String". Where to shower, get something to eat, the best places to use a clean restroom, etc etc etc. Im going start giving this some thought. I need to focus on a paticular topic for my next project, and what better than something I've intimately been a part.