This question has options. How would someone go about accomplishing this goal?
how to clean my shower curtain?

Select from: (I) Clean those ugly mildew stains off your plastic shower curtain by putting it and a couple of soiled towels in your washing machine. Add 1/2 cup laundry gel and 1/2 cup baking soda to the load, and wash it in warm water on your machine's regular cycle. Add 1 cup white vinegar to the first rinse.; (II) Clean those ugly mildew stains off your plastic shower curtain by putting it and a couple of soiled towels in your washing machine. Add 1/2 cup laundry detergent and 1/2 cup baking soda to the load, and wash it in warm water on your machine's regular cycle. Add 1 cup white vinegar to the first rinse.;
(II)