While I would not, in general, try to dissuade anyone from sending me good wishes in postal form, I do not celebrate Christmas and I do not send holiday cards. It is just not my thing, for a wide variety of reasons.
Want to know more? Read a more in-depth explanation: A word on holiday cards, or, why I don't do Christmas
Want to know more? Read a more in-depth explanation: A word on holiday cards, or, why I don't do Christmas