The real key to the toilet seat, is for men to simply ignore it.
If she annoys you, then tell her from now on she is responsible for the seat, so if she wants a dry one, she better put it back up when she is finished.
Had this damned dog who was a wonderful pet, except he would drink out of the toilet. Tried to train him otherwise, and it just wasn't happening. New rule of the house: lid down on the toilets...no excuses.
Yes the dog licks his a$$ while cleaning himself, but it's just not nearly as gross.