Ours didn't come down because it never went up. Too many kids, too many in-laws, too many ex-laws, and too many outlaws for everybody to conveniently get together before Christmas. We tried something different this year by going on the road to the Georgia Atlantic coast and then up to Charleston for ten super days of vacation in the camper. We'll get together starting this weekend with the kids and grand-kids. Everybody now appears less stressed with having to be somewhere at a certain time, and then leaving there to be somewhere else at a certain time. I also think it's important for each family to have their own traditions when the kids are young. IMO, And of course, having Christmas with the old folks there is important too. Will we do this again? Probably not - the backlash is getting worse than the stress we were trying to avoid.
When I was a lot younger my mother always maintained that Christmas had to come down by the first of January. She said it was bad luck to leave it up any longer. I'm now convinced it was just her way of getting it done in a timely manner.
However, I still eat my greens and peas on New Year's Day.
Ed