If I have time to get them up, they go up around December 15 - 24, and come down on New Year's Day.
I do a lot of Christmas shopping which starts on Dec. 26, for the next year! I get ornaments on sale that I tie onto gift bags of food for others. Fun! And it is all 50% off! I also get ribbon, gift wrap, tissue, celophane, candles, and much more at the after-Christmas sales.