This question always makes me laugh.
I want to be all like, "yoga and mediation, of course" but while I do those things, I kind of consider any relaxation that springs from them to be work.
It takes effort to do yoga and effort to mediate.
Truthfully, I walk.
Lots and lots of walking.
If I have a problem I am trying to work out, I move, doing circles around the Hovel.
If I want to chill out after a long day, I will walk around our village. And around our village and on the lakeshore, until finally my mind isn't churning on anything.
Also? I've never told anyone this before...
We were once at a outdoor festival and I became totally memorised by this busker act.
He bought me a tool of the trade for my birthday, shortly thereafter.
Now I totally suck at it but I take it out and try it when no one is looking and I hide it from the offspring.