To keep whites white add C of Baking soda, vinegar, borax, or hydrogen peroxide. Add ½ cup of any of these cleaners to wash cycle to keep your clothes bone white. For double duty, mix in ½ cup vinegar and ½ cup borax to your white loads.
Dawn and hydrogen peroxide to get whites back to white, and gets rid of nasty yellow armpits.one part Dawn dishwashing liquid mixed with two parts hydrogen peroxide. Pour directly onto stains, let sit and then launder.