Family fights, different beliefs/views, income levels, etc, etc, etc. Not a Christmas fan either. One thing that you might consider doing this year, is some sort of shirt, with a holiday theme that says, "do you have the reciept?"
We need to come up with some anti Christmas song, "Return this to here, take this back there, get it away, I don't want it anyway" (song to the tune Carol of the Bells)