As for Kahlua, it just wouldn't be Christmas without it as I have a long-standing tradition of sipping Kahlua by the Christmas tree this time of year. In fact, just seeing a Christmas tree makes me salivate for Kahlua. Sort of a Pavlov-dog thing going there. This year, I allowed myself a jigger of Kahlua each evening and I drank it real slow. Thus I only went through two bottles this season instead of the usual five or six (or more because I didn't really count).
As for Egg Nog, I used to drink it by the gallon other years. I'd have two to three tall glasses practically every day between Thanksgiving and New Year's in years past. It was a holiday staple with me. This year, I only went through two half-gallon containers and I would have no more than half a glass on any given day. As a result, I didn't gain any weight because I still didn't have any pies or cookies or any of the other things I used to gorge on in years past.
So it is okay to splurge a little now and then. I'm back on the straight and narrow for a while now.