How can I rediscover the things that made christmas enjoyable?

I know im asking this question on Christmas Eve but its been something that i have often had trouble with for quite a few years now.
When christmas comes, i no longer feel like theres something exciting or special happening. It comes and it goes and i end up feeling depressed that its gone before i could find . . . well anything about it to make it feel like something special has happened. When i was a kid, it never lasted long enough; it was such an exciting time of the year. And now, I cant even live up to the statement “Tis the season to be jolly”.
I suppose my question is this: what aspects of christmas bring you joy? How do you make christmas special or something that you really do look forward to?