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I can remember being on some parenting listserv (maybe misc.kids; maybe Parent-L) when C. was little and people were discussing holiday traditions. I picked up a few from that discussion and thought I'd share them.
First of all, being the children's book lover that I am, we do an Advent Calendar with Holiday books. The eventual goal (we may be there this year...) is to have 24 Holiday-themed books. When you get out your holiday decorations after Thanksgiving, wrap each book in wrapping paper and set it out under the tree. Starting with December 1st (or later if you don't have 24 books yet), each night one child gets to pick a "present" to unwrap and we read the book as a family. Some of the books are wonderful classics that we look forward to every year and that are always the first opened. Some are really silly, goofy stories that get read once a year and that's it. And some are even Christmas board books from C's first Christmas!
The other tradition we have is to give new pajamas for Christmas Eve! It doesn't matter where we are on Christmas eve, the kids each get to open a present that contains new (but already-washed) pajamas. They get to wear them that night and then they have new jammies for Christmas morning pictures! My Sister-In-Law does this, but adds one element--the pajamas always arrive from Rudolph (the kids find them on the porch).
Oh, wait! I guess you'd call it a tradition... when I was growing up, my brother and I always got to exchange each other's presents on Christmas Eve. It took an edge off of the overwhelming excitement of waiting until Christmas morning, and we really appreciated the gifts to/from each other. Now that we often spend Christmas Eve at my in-law's, we allow our kids to open their gifts to each other the day BEFORE Christmas Eve.
I'd love to hear anyone else's holiday traditions!
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ADDED LATE:
Found this link at Kiddley with another neat advent idea...