I don't think it was any one thing, just the total of all the little things...lightbulbs that don't screw in, flipping a switch to get power to the socket, the pull rope in the toilet, even the way the toilet flushes. (You really have to put your shoulder into it don't ya!) No round doorknobs, no doorknobs at all on the outside of the houses (in London at least...) and of course, the frustration of finding a place to dry my hair since there were no outlets in the bathroom. Same as everyone else, I guess. And this was just the first day! Ha!