I like jinx's idea.
We are inviting my daughter's in law's to come for a few days while the kids are here over Christmas. The kids live in MA and come every other year at Christmas. The in law's live just across the Ohio River in KY. That way they get to see the grandkids around the holidays. We have also gone down there to see them when it's their year for Christmas.
This year all three of the girls will be here (first time in probably 8 years they've all been here at the same time) so the 3 bedroom ranch will be busting at the seams. The in law's will stay at a nearby hotel as there just simply isn't enough room here for everyone. They are fine with that.