Use Deodorant to Remove Underarm Stains

I bought a beautiful white sweater at a yard sale. The challenge though was the sweater had large yellow armpit stains. I got all sorts of advice, use OXI, use vinegar, use lemon juice, use baking soda; they all failed. Then someone said use what "caused the stain". Hmmmmm, deodorant.

I used a stick of solid white deodorant and rubbed it thickly into both sides inside and out. Let it sit in cold water overnight. Washed as normal the next morning and Wha-La! Beautiful white sweater that looks like new!