It’s comforting to know that there are some things married couples can fight about even when they are on the road.
One of these things is air conditioning. At home we have a Nest thermostat, and M. tells me that it actually has a mind of its own and sets the house to the temperature it thinks the house needs to be. But I refuse to believe that any computer believes our house needs to be the exact temperature of a meat freezer. The coldest spot is our bedroom, and the coldest spot in our bedroom happens to be on my side of the bed, most likely because the AC vents blow directly onto my pillow. (Also because I sleep next to the always open window, because M believes in sleeping in a room full of fresh air. Even with the air conditioner blasting.)
I once told him that Jimmy Carter said that in the interest of conservation, we should set our house to 74°. M wanted to know why I would cite Jimmy Carter when I was neither living in the US during his presidency, or politically aware at the time. I had no answer for him, but just thinking about Jimmy Carter right now makes me want to cry, so I’ll move on.
We are currently in a vacation rental. There is also a Nest here and hours into our visit the entire rental is the exact temperature of… you guessed it, a meat freezer. Naturally,  every time I pass the Nest I do this: Occasionally, just like at home, spite will often get the best of me and I will set it to 80°. But within seconds it has plunged back down again…
The other thing we can apparently fight about anywhere is towels. M. does not understand why I refuse to go a full week before laundering my bath towel. I tell him that I am happy to wear the same pair of jeans unwashed for two months, but if it were up to me, I would have a clean bath towel every single day.
Here we are in a cute little vacation cottage, and just like at home, I am doing laundry from sunup to sundown. Please do not get me started on the sand. 
If I am going to be doing round-the-clock laundry, and sweeping sand from crevices unknown, I get to have a clean towel. Every day. 
I’m sure that Jimmy Carter would agree.