Not everyone celebrates or acknowledges Thanksgiving (like no one outside the US) or Christmas.Skepticalscribe - The holidays at this time of year serve to focus our attention on family and community in celebration of the harvest (Thanksgiving) and the approaching re-birth or dawn (Christmas/New Year). After January 1st focus your attention on the fact that the days are getting longer. Winter blues results only if you allow it into your head.
November and December are the two most depressing months of the year. I for one will be happier once they are passed.