For the new year try an exercise that you'll enjoy and that has a multitude of benefits. It's aerobic, tones muscles, has an initial invesment of about $5, and can be done anywhere. Grab a hula hoop (you can buy them at any toy store or even Target) and give it a spin.
Don't worry if you can't keep the hoop up for long, like the little girls in this video, you'll still get good exercise just trying. Soon, you'll be like the ladies who can hoop and squat and smile all at the same time.
Additionally, your spine will get nourished with undulations, especially as you master the movement and use deeper, core muscles.