I am for a few hours since money is money and I could use more to pay bills. I'd work Christmas if I had to as well. I did last year and made $240 in four hours. I don't celebrate the holiday anyway and but already visited with most of my family.
IBWIP is working tomorrow. He figured that his office would probably close by noon time tomorrow so it doesn't really make a difference. He had this past Friday off though, and he has the entire week in between Xmas and New Years off.