Want to brighten clothes and remove stains without using any harsh chemicals in your washing machine? Grab salt from your pantry and add it to your laundry routine. The natural chloride in salt works as a brightener, protector and stain remover all in one. Just add a half-cup of salt to your laundry (in addition to your detergent) to give it a natural boost. You can also soak stubborn stains or dull fabrics in a saltwater solution overnight and then wash as normal. You'll notice a considerable difference.