I know it is very early to be thinking about Christmas plans but I'm already stressing about it 
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My Dh is an only child and his mum is single (has been since she divorced 25 years ago). Dh has spent every Christmas with his mum. Whether that has been just the two of them for lunch, or when he was with his ex MIL would go to his ex's relatives for Christmas Day. Since Dh and I have been together she has come to my parents for Christmas Day or to our house. This started with my mother inviting her and I feel uncomfortable that this has set a precedent for her now spending Christmas Day with us forevermore.
MIL is a very needy and clingy person. She is not the type to say "don't worry about me I will organise myself this Christmas", she would expect that she is catered for and spends Christmas Day with us every year. She has a very close single friend who she frequently goes on holidays with and could easily spend Christmas Day with. I'm not suggesting that she does this every year but every now and again would be nice.
We also spend all of Boxing Day with her as that is when my Dh has his kids for their Christmas with him. I am finding spending all of Christmas Day & Boxing Day with her too much. She is very needy and critical of me and I don't feel like I can relax around her. I feel like this means I don't get to ever have a nice Christmas.
My mum says that not to invite her would be very mean. But my dad thinks that if we're spending all day Boxing Day with her and I'm cooking for her then that I shouldn't have to spend all of Christmas Day with her too.
I don't know if I am being unreasonable. I probably am and I don't want to be mean to her. But I'm starting to wonder if I could just book a last minute holiday just for me at Christmas and leave them all to it. I know I am probably being selfish but I would really like one Christmas where it is just us. I just want a nice non stressful Christmas where I am not walking on eggshells all the time. Not sure what to do.