I've always been told you put them up 12 days before christmas (12th dec) and then take them down 12 days after (jan 5th)
Thats when my tiny optical christmas tree goes up anyway..
"Mmm... I want you for my wife!"
"Autom...Sprow...Canna...Tik banna...Sandwol...But no sera smee?"
"Of course you can. We would love for you to join us."
www.myspace.com/matheadmusic