I'm mainly working on one video game and one board game design at the moment, mostly the video game right now. Sometimes if I want a break from the game I'll do a tiny bit of work on a library that should facilitate future web game development, or trying to get a personal site up again to showcase all my games (including past ones that have been released and videos for board game prototypes I've pitched to publishers before).
I do have a list of what to work on next after that, though. I did used to try to juggle a lot more and bounce amongst several projects at once, but it's been too long since I've released something, so I've got to knock it off for a little while. But if I don't scratch the creative itch when it strikes at least as far as some notes and some card ideas or something, then I start feeling pretty stuck, since a lot of my current game is just getting all the UI running and polished right now, not exactly super creative stuff.