Hope the season is bringing you maximum joy with minimum frustration! Was just thinking about all the magazine articles and blog posts out there which will be offering up all the usual holiday advice for surviving feasts (or not giving yourself a hard time for indulging--that seems to be a new theme this year), and well meaning, but often over complicated holiday workout plans.
I think the cliche of "no matter how slow you go, you're still lapping everyone on the couch" is a good think to keep in mind during the holidays. Mainly, making an effort to stay reasonably active and keeping portion sizes reasonably appropriate. One year, my folks and I were on different but similarly low carb eating strategies - and while our plates were just as full as everyone else's, the choices of what we chose to eat (plenty of meats, green vegetables, one small dessert) ensured that instead of passing out on the couch, we decided to take a fun walk on the beach. We also didn't have that painful "omg I am going to explode" feeling either. AND by eating the good things we wanted, and plenty of them, we didn't have to deal with anyone giving us a hard time. They just failed to notice in our joyous heaping plates there wasn't any mashed potatoes or sugary items. So this is also a great approach for side-stepping any "well meaning" passive aggressive attempts to derail your healthy life choices.