Those kinds of advertisements get me a little perturbed, Lazy L. They imply that they can do a whole lot more than they really can. Sure, even a tiny solar "generator" is useful for maybe charging your cell phone, maybe even an LED light or two for a while. But anything substantial, they're not gonna work.
I was kinda thinking of maybe 6 to 8 quite large (like maybe 3 or 4 ft wide, 4 or 5 feet long, can't remember exactly, maybe 300 or so watts each) with something a little closer to a half dozen golf cart batteries and a decent sine wave inverter. That's still pretty small when you start adding in normal household stuff but it would be enough to get by with for many of us if we were careful about it. It would definitely run the freezers, maybe a few lights and some basic electronics, and be able to do it on a continuing basis.
People have a tendency to way underestimate the amount of electricity they use. Having lived in an RV on one single 20 amp extension cord was a bit of a juggling act at times. But we did it, for a while. And there wasn't a whole lot we went without. We did have to be mindful of what was being used and when. We could even run the microwave... if we shut everything else down, LOL! I suspect a small solar setup would be similar.
I might be preaching to the choir, here, hope I haven't droned on too much.