Every year, as soon as it gets dark on Christmas Eve, we bundle into the car and sing Christmas songs as we drive around searching for Christmas lights. After we have admired all of the displays, we go home and warm up with hot chocolate or tea while watching a Christmas movie. (usually something funny, such as White Christmas).
After the movie goes off, everyone opens one gift. Then we write fill out a Christmas card to leave for Santa, and leave it by a plate of cookies, milk, and sometimes reindeer treats.
After the children are in bed, the grownups eat the cookies, fill out a card from Santa, assembled any large gifts,fill the stockings, and wrap Santa's gifts for him in new wrapping paper. We also use different labels and bows, and always leave at least one unwrapped gift in front of the tree. This present is the first one the babies see, and they always have that beautiful look of awe and wonder on their faces when they spot it.
After all the elf-work is done, the grownups crash into bed knowing that it will only be an hour or two before the Christmas squeals begin!
We "elves" have also been known to wrap other children's gifts and take deliver them in the dead of night, as a sneaky way of making sure they don't catch their parents doing the job!