What's a great product/hack for removing stubborn poop stains from baby's clothes?

Hot water causes the stain to set in, so use cold water to scrub off the stain as much as possible. After the clothes dry, sun them under direct sunlight to get the stain out. It really works! http://www.mamaslaundrytalk.com/stain-removal-101-baby-poop/ An alternative is Vanish Power O2. Mine's a breastfed baby so her poo stains are easily removed from clothes.