women shouldn't douche because the vagina is self-cleaning and has a very very sensitive pH balance. Douching can not only throw off the pH but can also flush out good bacteria that the vagina uses to fight off foreign bodies that can give you infections.
you actually shouldn't wash with soap either. water is enough.
if you feel you're not your "freshest" then there's a product called repHresh you can use that to feel more fresh.. there are also special towelettes you can get to wipe with that can freshen you up