For me, Christmas and Thanksgiving are a pretty standard feast, like I wrote about in my Thanksgiving (Recipes) hub. Turkey, ham and beef roast, baked macaroni and cheese, potato salad, noodles, dressing, and of course the cakes and pies.
The last few years, my sibs and I (in Texas, the family and feast are in SC) abbreviate the feast. We never skip the baked mac and cheese though. We have a huge one so there will be leftovers for Dunbar Macaroni.
As for the alcohol, we try to treat ourselves with a bottle of Eiswein or Beerenauslase. That's a nice 'dessert'.
Mine contribution here is not as "artistic"/romantic as The Bard's or as entertaining as Sandra's. The smell of baking the pumpkin, cranberry, and other breads/pies in the kitchen late Christmas eve ushers in a Christmas-y mood for me.