Since I drive all over town for a living, I wanna add that I have learned a new hand gesture for Merry Christmas and it involves only one finger. I am sure this is what they mean for it to signify. I have seen it sooo much in the past few days and I smile and wave back, sometimes gesturing in return, but always smiling. It is so nice to see that people still have good sense of neighborly - ness about them during this hectic time of year.