Windex is known for its window cleaning abilities, but Household Hacker says you can use it to remove tough clothing stains too if you're out of your regular stain remover.
Grab your stained clothing item and spray the stain with Windex until the area is saturated. Let it rest for about 15 minutes, toss the item in the washing machine with a regular load, and you should be good to go!
Make sure you're strictly using the regular blue Windex. The other types have not been tested and there's no telling what may happen to your clothes!