in a friend's backyard, usually $50 per month suffices, so that there are no complaints about my sunshades. If it's really cold, I rent a 10x20ft public storage unit, pull the van inside and get out of the wind and precipitation, that helps a lot. I use a propane fired plumber's furnace as part of my biz, so I heat a couple of 5 gallon buckets to a boil, and position them where they give off heat where needed. I'll hang space blankets to reflect back the heat, so I only need to re heat the water about once every 4 hours. Its not needed for sleeping, of course, due to the sleeping bags.