When Do You Put Up Your Christmas Tree?

I did something this weekend that I never, ever thought I would.....I put up my Christmas tree! Many would say, who cares, not a big deal. But you don't understand, I'm the procrastinator, I wait until the last minute for everything. Including putting up the tree. lol 

However, this year since we have a new baby girl and I know she will enjoy all the pretty lights on the tree, that and the fact that everyone seems to have done it already, I felt left out, so I decided to get it done. It was so fun and easy, if you don't count the fact that I realized the top part of the tree's lights were out (don't you hate that). Otherwise, I had forgotten how happy it makes me to be able to turn it on and enjoy, the whole family is loving it, now the struggle is keeping baby away from the ornaments. When do you put up your tree? Do you have a strict family tradition?