Saw this in comments over at a SayUncle post:
Please accept without obligation, express or implied, these best wishes for an environmentally safe, socially responsible, low stress, non addictive, and gender neutral celebration of the winter solstice holiday as practiced within the most enjoyable traditions of the religious persuasion of your choice (but with respect for the religious or secular persuasions and/or traditions of others, or for their choice not to practice religious or secular traditions at all) and further for a fiscally successful, personally fulfilling, and medically uncomplicated onset of the generally accepted calendar year (including, but not limited to, the Christian calendar, but not without due respect for the calendars of choice of other cultures). The preceding wishes are extended without regard to the race, creed, color, age, physical ability, religious faith, choice of computer platform, or sexual preference of the wishee(s).
Merry Christmas and Happy New Year Everybody!"
Not sure the first part will fit neatly on a card either.
Regardless - "Merry Christmas and a Happy New Year" sums up my opinion on the matter!