Anything with my hands and away from my computers.
I have 1 last bedroom to gut and remodel this year; down to the studs, new windows, insulation, electrical, door, drywall, etc...
I've always been into cars but this will be the first year I attempt paint correction. I've been watching a lot of youtube videos on how to remove swirl marks, water marks, scratches, etc... I've bought the tools and polishes / glazes / clay bars - just waiting for the weather to get a bit warmer. I'll usually spend a half-full weekend day washing the wife's and my cars every other weekend or so. Not that leases need to be maintained that meticulously; but I enjoy doing it and it's a great upper body workout.
I have an indoor bike (Peloton) but again, when the weather breaks; I'll take my regular street bike and go out on the bike paths instead.