I threaten my kids with grievous bodily harm if they play Christmas songs before December 1st. I don't mind some Christmas music, especially traditional carols, but I like anything Christmassy to be confined to December.
I cannot put into words how happy I am to work in one of the few retail chains which never plays music. It makes up for the years I worked in a place which had just three Christmas cassettes: Barbra Streisand, Bony M, and The Chipmunks. It's amazing no employee ever went postal during the holiday season.