Campsite Sitting Rug
"Oh, yes, sitting. The great leveler. From the mightiest Pharaoh to the lowliest peasant, who doesn’t enjoy a good sit?"
Adds a small rug you can sit on, in the camping menu. No other functionality than just letting your guys have a sit when they camp out for the night.
0 build cost, but I recommend dismantling them when you pack up camp, otherwise, with too many littered everywhere, your save might get bloated.