I knit on the way from school in the mornings as I'm walking home, only a few rows but that's how we build a sock anyway. I knit while waiting at the doctors office, waiting for youngest to get out of class, just before bed and sometimes while watching a movie at home. I always have a pair of plainish socks on the needles for the walking and the waiting. The world is my crafting space; nowhere is out of bounds so far, in social situations knitting is what keeps me calm and stops me from running away.
I keep something more complex for the evening and daytime knitting when at home, but at the moment I'm concentrating on one pair of socks as I'm getting low on socks for me