Females, make sure the seat is down (easily forgotten during the middle of the night). In a public restroom (or a private one shared by sloppy people) make sure the seat is dry. Lift any skirts, robes or long shirts; unfasten and pull down any pants, culottes or panties. Sit or squat over the bowl -- don't try leaning over to reach for something.

After urination, wipe off genitalia and put clothing back in place. Wash hands.

This is why women take so long in the bathroom.