I went shopping, and on the way back home a free pile called my name.
I went over to Airgas to pick up a new bottle of firegas (and a couple of pipe clamp vise-grips (cheaper than aluminum frame blocks, alas!) and when I was almost all the way home I saw a free pile that had an elderly wooden chair perched on it. So I loaded the chair on top and came on home (the chair is in the garage right now; I need to strip the paint off, sand it smooth, then varnish it so it will look prettier than it does right now) very slowly so it wouldn’t rattle loose and tip the trailer over sideways.