Answer:
Distilled White Vinegar
Add one cup of distilled white vinegar to one gallon of hot water. Submerge the white fabric and allow it to soak overnight, then launder as usual. Adding one cup of white vinegar to the rinse cycle when washing white or colorful clothing will help cut through the detergent residue that leaves clothes looking dull.
Lemons
The citric acid in lemons can bleach fabrics and works well to whiten cotton, linen, and polyester fibers. Mix a half cup of lemon juice (from about four lemons) into one gallon of hot water. Add the white laundry and allow it to soak for at least one hour or up to overnight to whiten. Then wash as usual.
Baking Soda
Stir one cup of baking soda into one gallon of boiling water, then remove from the heat, add the dingy white clothes, and let them soak for at least an hour or overnight. The sodium bicarbonate will help cut through the soil on cotton clothing that leaves them dull. Wash as usual.
Hydrogen Peroxide
Safe to use on all washable fabrics, hydrogen peroxide is a mild form of oxygen bleach. Use the same 3 percent solution sold in drugstores for first aid and add one cup to the washing machine's bleach dispenser. Because hydrogen peroxide breaks down quickly, make sure it is fresh (it should fizz when poured into a cup) or else you're just adding plain water to the washer!
Step-by-step explanation: