I looked over my schedule for December. Excluding the "let's meet for coffee" appointments I have during the day, these are the dates for which I have evening commitments this month.
2, 5, 6, 8, 10, 12, 15, 17, 19, 20, Xmas Eve, First night of Hannukah (Christmas night).
If anyone sees me bumping into walls, it's only because I haven't had any sleep.
(By the way, only two of those are Holiday parties, the rest are business, family, or political commitments.)