Many towns and cities host annual holiday events such as Turkey Trots or Jingle Bell Runs. These "fun run" races are usually family-oriented and not too intense but still very good ways to stay in shape during the holiday season. Sign up for these events well in advance so that you can stay committed to working out in order to prepare for the event. You can incorporate daily exercise into your everyday holiday season routine. Holiday-themed races are the perfect way for the whole family to stay in shape and anticipate the season.