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White distilled vinegar works as both a stain remover and a fabric softener when added to a laundry load. Simply pour 0.25 cups (59 mL) of vinegar into your washing machine during the rinse cycle to clean and soften your stained white clothes.  Avoid using vinegar in your laundry along with chlorine bleach, since this combination will produce fumes that can be harmful to breathe. Note that using vinegar in the laundry may harm clothes made of silk, acetate, or rayon. This will not only get rid of stains, but will also give your clothes a nice lemony smell. Add 1 cup (240 mL) of the lemon juice to your laundry along with your detergent, then wash as normal. Don’t use lemon juice with colored clothing, since it may accidentally bleach them. Toothpaste has a number of surprising uses besides brushing your teeth, one of which is removing stains from clothing. Wet your clothing, then use an old toothbrush to apply a thin layer of white toothpaste to the stained area. Scrub the stain vigorously for about 30 seconds, then rinse the clothing in water.  For the best results on white clothing, use a toothpaste with whitening properties. Avoid using colored toothpaste, since this may actually stain your white clothes even worse! The toothpaste method typically works well on cotton clothes, although it may not work on other fabrics.

Summary:
Add vinegar to your laundry to both remove stains and soften fabric. Try adding lemon juice to your laundry with your detergent. Scrub cotton clothes with white toothpaste before washing them.