Chalk is not only for teachers! Grab a box of the white variety at the Dollar Store to keep on hand. Keep a piece in your purse and car so that the next time you get an oily stain on your clothing (you know you will from butter, sunscreen, salad dressing, etc.) you’ll be able to rub it on both sides of the fresh stain. Leave on for about 15 minutes. If there’s any dust, brush off, then launder as usual. The calcium carbonate in the white chalk will have absorbed the greasy stain.