I stopped working over 13 years ago. In that time, I have done a very small amount of cat sitting. That work has tapered off though, and I have not sought any more. I occasionally think that if just the right opportunity fell into my lap, I might go for it. Thing is, my criteria are very narrow. It would have to be doing something I really want to do, at a fairly high rate of pay, and it wouldn't have to be too hard. Oh - and I could do it when I wanted to, and wouldn't have to do it when I didn't want to. Realistically, gigs like that either don't exist, or they are not going to come my way without me trying hard to get them.
What it really comes down to, if I'm being honest, is that I like doing what I want to do, when I want to do it, and paid employment doesn't fit in with that!