Having house guests for prolonged periods of time. Every year since my kids have been born (so 14 years now), we have had a grandparent/grandparents stay with us for 2 weeks at Christmas. We live across the country from both of them. I hate having house guests because I always feel responsible for making sure they aren't bored, are fed at every meal (which is a huge burden, as our little family typically is very low maintenance about meals...we will do sandwiches, smoothies, or breakfast for dinner routinely, while the grandparents expect a solid 3 hot meals a day). I feel like I am always in the kitchen cooking meals, and we spend a FORTUNE on groceries. I am over it, but I cannot think of a way to stop this practice without a LOT of hurt feelings. My MIL is a widow and my husband is her only child that is married with kids (the other two kids are huge losers, TBH). So, if she doesn't come here, she stays home alone. She comes every other year. My parents come every other year, but when they come, it's even more stressful, because I just don't have a great relationship with them. There is always drama. I at least have 2 sisters who have kids, so my parents rotate who they go to for Christmas, but one sister lives very close by, so we see them every year regardless. For a long time, I was the only one with a guest room, so they always stay with us, while my sisters would at least have the luxury of them staying in a hotel when they visit.
I am seriously considering just announcing that this will be the last year I will host people for the holidays. I am over it. I would be fine if they want to visit starting on the 26th and stay through New Year's, but I would just like to have Christmas be a nuclear family deal from now on.