Nothing from a feminist point of view, because I'm not a martyr and my husband isn't a neanderthal, we don't have things that are "my responsibility", either through me feeling the need to or him leaving it to me.
I find my sibling's partner stressful, because they happen to be an arsehole and my sibling is noticeably on edge for the duration of the visit.
After a few years with at least one person being ill on the day itself I get a bit anxious about that, and how it could potentially change plans.
The expense, although I don't go mad and buy loads of unnecessary stuff, it's obviously a more expensive time than usual and we are on a low income.
Dh working, he doesn't get time off for Christmas. The kids and I obviously miss him when he's not here, and sometimes the logistics can be tricky, managing to squeeze in a visit to his family for example.
We save a lot of stress by having too many children and not enough room for people to be able to stay, not really bothering with cards, and shopping throughout the year so all the expense doesn't come at once. Also it helps that we bloody love Christmas so generally it's something to look forward to than dread!