Yes, there are a handful of big box stores that permit this. Also, many state and federal parks allow dry camping (with no water or electric provided) for very low rates. I haven't really begun to explore these options, yet, but will. My solar panels were delayed, and so power when boondocking has to come from my generator for another month or so, which isn't really something I want to run for several hours each day (I could probably do it with two or three hours a day of runtime to charge my batteries and my laptop, but I haven't experimented with that).<p>And, since it's currently the off-season, RV parks are pretty cheap. I'm paying $41.50 per night in a really nice place on the beach, vs. $71.50/night plus utilities at my house in Mountain View.