One tablespoon of classic Dawn liquid – the blue stuff One cup of hydrogen peroxide Dab onto stain with a clean cloth or sponge. Try it? According to WardrobeOxygen: This can remove red wine, blood, yellowed stains from sweat and deodorant, grass, even stains that have been laundered and are old. I have since used it on heavier duty fabrics with an old clean toothbrush, and have poured it directly on to stains to pretreat before washing.
LAUNDRY :: Magic Stain Remover :: 1 c. hydrogen peroxide, 1/2 c. Dawn dish soap & 1/2 c. baking soda. Mix really well (stir, don't shake). Apply to stain, scrub, then let sit 1 hour. Then wash like normal. Removes stains & whitens. (I might rinse a bit off before I throw in the wash, cuz that Dawn makes A LOT of suds!)