It never feels like there is enough time to include exercise into a daily routine. During the holidays, it appears to be impossible. But you are not trying to train for a 5K or cross-country ski race. The goal of increasing calorie burn at this time of year isn’t dependent on doing a long, sustained workout. All you have to do is figure out how to get a couple of 10-minute blocks of movement interspersed into your day. Here are a few ideas on how to do this.