Stained clothes are a trademark in my family, so I doubt they have any stain-removing knowledge in their databanks. And my friends are all in my head.
My mother-in-law has said you shouldn’t put stained clothes through the dryer because it makes it harder to get them out.
Try pouring a spot of liquid laundry detergent on the stain, let it sit for a few minutes and then scrub at it with a brush (like one from your kitchen sink).
I also think I remember reading somewhere possibly using toothpaste, or club soda, or white vinegar.