Thanks to all for your suggestions. I think I bought the Schwinn stair stepper in 2000 and have used it pretty regularly since. I wore out two others before I bought this electric one. It's a good leg warm up and most of my stretches are leg stretches, an old martial arts routine I still follow.
I won't be able to lift again for several months, trying to get my third retinal surgery to take. But I'm definitely keeping a record of all suggestions. Why are people down on behind the neck pulldowns? I have an old subluxation right between my shoulder blades, and it seems to keep that in check. I've read other posts that recommend against them.
Nobody says why.
I do my stepper and stretches in the morning, strength training in the early afternoon. I'm getting the point that I need more aerobic/cardio and fewer calories. Please continue!