It's Beginning to Feel A Lot Like....CHRISTMAS??

I was out and about yesterday and noticed a house with a Christmas tree inside already up, decorated and lit. Now, I realize that Thanksgiving has been and gone over a month ago and even Halloween is a distant memory but isn't it a bit early to put up the Christmas tree? Maybe I am behind the times here but I would likely put it up two or two and half weeks before Christmas at the earliest. It would drive me insane to vacuum around it for a month! When do you put up your tree?