For us, it always was:
My dad had to be up.
My mum had to have her coffee.
When they were ready we opened our stockings & SANTA presents.
Then we called my aunt & uncle to come so we could open the rest (because a large bulk of the presents would always be from them).
And then we'd open them.
It's changed since then, because in grade 6 we were going away and probably wouldn't see my grandparents until summer. So we went to my aunt and uncles on the weekend for their presents and spent Christmas Eve, and Christmas at my grandparents.
Grade 7, my parents decided we'd go to my grandparents again because we wouldn't have many Christmases left with them. It was partially a lie because.. WE WERE GOING AWAY AGAIN xD. It was our Christmas surprise.
Grade 8 (last year) we spent it with my grandparents because my grandmother was ill, we figured it would be her last Christmas & sadly it was =(. It was the worst Christmas I have ever had.
This year my grandfather is coming down, and my other aunt & uncle and my cousin claim to be. My brothers coming home for Christmas (he goes to school in Ottawa). We won't be going back to the normal Christmas, because my mum may be working and we're not real little anymore. But it'll be great to have all the family down.