Or, you can just live in your car.
CPS doesn't like that.
Probably not much they can do about it, if you move often.
Another option is to host at camp grounds. In exchange for keeping an eye on the place, you get a free spot to park your RV, along with free hookups. I met one guy who hosted a place near here during the summer, and then headed down to Texas to host one there during the winters. He's retired and lives with his wife on less than a thousand bucks a month. He's also an avid fisherman, and spends most of his time at local lakes. There's very little actual work involved. If something needs fixing, he calls the campground administrators.
My wife's old boss, also retired, does this, as well. Her and her husband have hosted several different campgrounds in the Northwest.