I've tried out just about every chair/stool made for the purpose and none satisfactorily fit my body's construction. I keep thinking I might have to invent something that works for me.

Meanwhile I make do with an adjustable stool that's sorta OK at a desk height greater than usual office furniture. I don't sit too long, getting up to stand or move around pretty often.

Not sure how much this has to do with problem solving vs. dealing with malformed bones and warped body structure. Maybe it just shows seeking comfort is overrated.

Though I do like to walk and enjoy the scenery, the hectic crowds, or especially the wonderful companionship of my wife. If inspiration strikes, I'll try to hang on to it, though I rarely do. Amazing how often the idea recurs when I can at last recapture it.

The thing about standing desks is that you're supposed to stand at them.

Stand, of course, but manufacturers produce a number of seats or stools designed to make it easy to transition from standing to seated to standing.

Makes sense. For some tasks standing all day at one spot would be too tiring. This furniture is not cheap, obviously designed and sold for serious purposes. There is a market, so I imagine there's reason for it.

Walk farther, then all the ways that people can interrupt you go down.