We're not hosting christmas lunch, so just need the fun bits to make it festive in lead up. And we are hosting Boxing Day - a buffet would be good I thought.
Plus I will have friends dropping in for drinks. And we will have my son's granny with us (my mum) so want to do some special film nights etc.
I have a sainsburys and a waitrose near by. Need to do a big shop this weekend - I guess Monday realistically.
What shall I buy? Please give me a list! 
So far I have:
1 bottle of bubbly
1 box of poshishbiscuits