Remove grease stains that have already been thru dryer**Sprinkle baking soda on spots. Use a toothbrush & rub. It will ball-up as it absorbs the grease. Once most of soda has formed into small balls, sweep off. For a 2nd time pour another small bit of soda on spot & repeat process til soda no longer balls-up. Next, use your normal laundry stain remover to treat. Let soak about 15 min & run thru normal laundry cycle. While spots are still there, they faded SIGNIFICANTLY.