This year, Jericho helped me decorate our tree on the 23rd... the day before Christmas Eve.
In my working days, I usually put it up when our Christmas holidays began and took it down before New Year's Eve - so as to start the new year with a "tidy" house.
But a few years ago, I discovered the concept of the "12 days of Christmas" - an Anglican Church tradition... (Remember the song, "On the first day of Christmas, my true love gave to me a partridge in a pear tree"? On the second day of Christmas..." and so on...)
So now - with so many hours of darkness outdoors - I enjoy the tree's colorful glow for 12 nights. Then it comes down.
There are, of course, no rigid rules about any of this! But having a "traditional reason" for what I do makes me feel less disorganized!