Painting is a great one.
I used to knit and crochet and do needlepoint and cross stitch. I always had something on the go. Since my carpal tunnel surgery and now that I have arthritis in both hands, I can't do needlework anymore.
Now I try to read (hard when I can't concentrate) or play solitaire or other games on my smartphone. I like angry birds.
Listening to music is good too.