The author of Car Living:

The author of Car Living: How to Make It a Successful, Sane, Safe Experience also has a Web site on the same topic (the viability of people living in cars). The site gives the author’s address as being a P.O. Box somewhere in Illinois; I half expected the make, model, and color of a car, along with a Vehicle Indentification Number to be provided as an address instead. (thanks to Mike for the link)