Absolutely nothing. Im a scrooge and dont like xmas and as OH is either on days or nights we dont bother with xmas dinner and as he is on nights this year so will sleep all day ( he has to work every xmas this year included, he is allowed time off to be with me while Im actually having her but then has to go back to work ) to me its just another day of being in the house on my own, the animals dont know its xmas so still expect their routine to be the same.
My mother has her parents to stay over xmas and does a fancy xmas for them while working ( she works with my OH just on opposite shifts ) so as she is busy with them we aren't invited.