I don't actually know. For years I've had this burning task to get my house rebuilt, all debt free and now I have it 99% achieved. I find it depressing that my yearly resolutions always revolve around money, but I honestly can't think of anything else. Job is great, I'm in shape, don't smoke, drink once every blue moon, get to travel a lot, have decent friends and is in a great relationship.
I have massive changes coming up next year, but it's all achievable with relative little effort, so I don't know.
edit
Aha, just thought of the biggie. Author a book from Chapter 1 to the end.