The Solstice has not happened. Kwanza is just beginning. New Year’s is a week away.
The only way you can have an “After Holiday” sale is AFTER “the” Holiday that you don’t wanna really say.
Target has no problem celebrating Gay Pride Month as a corporate "holiday season" (check their website).
What about Hanukkah?
The solstice was on the 21st (or is it the 22nd?). But who cares, right?