I think a lot of it comes down to sitting cross-legged whenever possible (I just find it more comfortable) and squatting rather than bending over when I need to pick something up (it's better for my back I think).

Because apart from that, I'm pretty sedentary, only really going out for groceries.

I mean, my flexibility definitely has gone down over the years, I used to be able to put both legs behind my head and now I can't even manage one.

But I can still do this 😎
bsky.app/profile/blub...

For socks and shoes I generally sit down, and put my foot onto my other knee (unless it's a loose enough shoe that I can just slip into it).

That said, I know I'm *remarkably* flexible/agile for my size so your mileage may vary lol