The Am I a brat thread below got me thinking.
I'm in Norway, so we celebrate Christmas on Christmas Eve, too. FI and I celebrated together at my parents' last year (since his were abroad), but this year we're splitting up (we did the same last year) because we're both ok with it (and have a mini-Christmas just the two of us the night before). Apart from Christmas Eve, we go as a couple to other family events.
Works for us, and we'll probably do it this way until we have kids.
How do you split your celebrations? Does it work?