The other day, my wife and I were talking about the fact that US air defense command organisation, NORAD does this every year and my wife mentioned they were talking about it on the radio earlier on, so I thought just in case you didn't know about this, it would be worth posting the link for anyone with young children, as it is great fun and will probably help to convince them that SC is really on his way!
http://www.noradsanta.org/
Chock