I think basic hygiene is a given for anybody (male or female). But I guess the one thing that has ALWAYS turned me off is seeing an otherwise attractive woman who has chipped fingernail polish. I don't mean like a small chip on one nail. I mean when a woman lets it just wear off, instead of just removing it. To me, that is an indication of trashiness... which is a BIG turn off to me.
And something else that turns me off: with the fairly recent fad of girls shaving their pubic hair, some girls develop razor bumps or rashes from shaving. I guess I'm one of the few remaining guys who doesn't have a conniption fit when he sees pubic hair on a girl. When I was in high school, the old joke was if you slid your hand under a girl's skirt and she had hair, she was good to go. But if she didn't, you needed to take her home ASAP! So it really doesn't bother me at all... in fact, on many/most girls, I prefer at least some pubic hair (it's sexy and unique, if done just right) - especially on blondes, I like a neat triangle. But for girls who feel the need to shave, if you have sensitive skin and tend to get those nasty red bumps or a rash... :eeew: