I do make NY resolutions, despite most people I know being all cynical about it - but hey, it's a nice point on the calendar to change/start something. Suits me!
My resolutions are a mix of resolutions and goals, I think. I'm a novelist, so in 2013 I want to sell three more novels, finish two in-progress edits (both have deadlines in the first half of 2013), and finish two in-progress drafts. Those are more concrete goals, although one of the novels I want to sell represents a step into another genre/market, so that's a bigger ambition. This business is a combination of hard work and luck, so the only thing I can do is the hard work bit that should get me to the right place, and then I just need to wait for the right time.
I also want to write more and write better, and to help with that I have another resolution: use time more wisely/efficiently, which means less faffing on the internet!
But I think 2013 will be a good year.