I definitely agree on the pet thing - my dog is the best therapy ever! Other than that - it depends where you're affected and how badly. Do you play any intstruments, and would you like to learn? Great outlet, also lets you focus really hard on something. Same for writing, painting -anything artistic. It doesn't have to be brilliant, right? It's just got to be you.

Other possibilities - sewing/knitting (I'm really bad at those, so I do latchhook - also, doesn't require much dexterity), jewelry making, gardening.....depends on what you like and how your mobility is.