I don't do anything "official", but in the back of my mind, I make a few resolutions. This year, I would like to commit to exercising (usually jogging a 5k) 5 - 6 days a week. My dh is desperately trying to lose weight, so my other resolution is to help him by preparing healthy, low-cal dinners. I'm not much of a cook, so it is definitely a serious resolution for me!