It's true many people gain weight over the Winter/holidays. It's probably all the Hot Chocolate (or other hot drinks), alcohol, large holiday meals and lack of exercise due to crappy weather.
Since I don't go to a gym, and generally don't do outside workouts, I hope to continue exercising (not that I have been exercising enough lately but still).
There are many things that can be done indoors, and with no equipment (which is what I do). You can search YouTube for workouts, or do the simple pushups, situps, jumping jacks type deal.
As for the eating, that one is harder and is basically self control I guess. Use a smaller plate, or put less on it. I know the food is usually really good, but that is really all you can do is control what you take and eat. If you are cooking, use more spices and less salt/butter/oil wherever possible. And of course the liquor, perhaps you can be the DD and have a reason not to drink? And if you do like to drink, try to cut down or do lower cal options and drink lots of water.
