Some years ago I read about a woman who had acquired Christmas books, and each night during December her family would read one together.
Not being one to pass by shameless stealing of others great ideas.. I adopted this tradition with our family. I keep the books in a basket that normally holds unread magazines, and each night we take turns reading a book until Christmas Eve. On Christmas Eve The Boy reads "The Night Before Christmas" and so ends our month of stories.
So far this month we have read "How the Grinch Stole Christmas" and "Snowmen at Night". We don't have 25 books yet (only 16, I buy 2 or 3 new ones each year) so we start on whatever night will bring us to Christmas Eve.