I'm single, I go to my sisters for christmas who is married with two kids. Mum comes too, alone. Me and my sister do the Christmas food shop together and mum brings bits. I had one alcoholic drink on christmas day.
When it comes to splitting the expense for christmas food and drinks, my sister expects us to split it 3 ways between her (and her family) me, and my mum. I dont think this is fair because I'm one person, I barely drink, she's a family of four and she also keeps all of the leftover food and drink for her family. We havent sorted out the money side this year yet but will soon, how do I handle this? She can be very difficult when she doesnt get her own way.