Solving Laundry Mishaps With Salt
Use a Pinch of Salt to Remove Tough Stains.
July 4, 2011 -- 
Add a pinch or two of salt to your washer with your normal detergent
Let the water run to dissolve the salt and detergent and then add your clothes
SOURCE:www.life123.com/home-garden/housekeeping/laundry/index.shtml