My personal cleaning icky phobia is hair, and it seems the cruiselines don't worry about it as much. Can't tell you how many times I've opened a drawer and found some long strands. In one balcony cabin I had, it was even on the railing.
Harry , please save as much as you find in a light brown. I'm losing mine quite quickly and some of what your finding is probably mine.
Next time my wife finds blond hair on my collar I can just tell her it is all over the place, just ask Harry.