Even dedicated gym-goers have a difficult time maintaining the regularity of their normal workout schedule during the holiday season. Many travel to visit relatives for extended periods of time, which inherently disrupts exercise opportunities. If you don't do the traveling, chances are a car full of distant cousins may pull into your driveway with plans to loaf around on your couch for a week. Playing host to a house full of guests is also sure to get you off your workout routine. Another thing that can put a wrench in your plans is holiday parties. Attending multiple soirees means fattening finger foods, cheese balls, creamy dips, more alcohol and further schedule disruption. Polishing off a few glasses of rum-laden eggnog after some mashed potatoes and gravy isn't much of a recipe for weight maintenance.