well in retail, one year they said they wanted us to say happy holidays so we didn't offend anyone then the next year they said, say what you want. So what i do is just not say anything of the nature unless the customer says something first then i just follow their lead... if they say merry christmas i will reply the same... and that goes for any of the sayings doesn't matter to me... and this is for any holiday not just christmas.

I really don't care either way. Christmas to me, is a fantastic excuse to bake,go crazy decorating, and knit for my mom. What I say depends on the company. My in laws don't celebrate any holidays so saying either at all is pretty rare.