I have a dishwasher so don't have that problem, but do find that whenever I've switched on the machine I'll find a random mug or fork or something that I somehow missed
I've got a dishwasher now too, but before that it would drive me nuts when Mick always left a spoon or something in the bottom of the bowl - which he never bothered to empty!!! Oh and he always left the washing up sponge wet as well! Yuk! I think he did it so I wouldn't ask him too often!