We're on a longish car journey and have just been chatting about this!
We'll be in Norway, so that's their "main" day. We then do British Christmas the day after, but the kids believe Father Christmas is in the 25th.
We wake up super early and get the house ready, take the animals for their walks. Come back and do a quick clean, and then friends and family are over for breakfast. Everyone brings food for then and food to cook for later!
Breakfast is salmon, pate, nice breads. Then it's basically a little party! Everyone dresses up and later we visit the cemetery. We're not religious, but it's a tradition and a nice walk, and so many people are there burning candles.
Back home we make a bit of a feast and everyone helps. Some people make ribbe, some lutefisk, and lots of other bits and bobs. That goes on for some time! Then we all exchange gifts (non Father Christmas ones), and everyone eats nuts and marzipan and it's just lovely. Everyone helps us clean.
Kids are usually knackered, so we clear everyone out and then get them bathed and in new pj's. Mince pie and carrot for Father Christmas, choral carols on, and we all cuddle down to read stories. Kids go to bed and DH and I run around like chickens with their heads cut off laying the presents under the tree, we have a glass of wine and a bath together, and collapse to do a very quiet family only Christmas Day in the morning.