Believe it or not chalk is useful for more then just writing on a black board. You wil want to get a box of chalk and place it in your laundry room to use on your clothes the next time to get a back grease, lip stick or other grease type stain on your clothing.
Instead of using extra laundry detergent to pre-treat, just rub white chalk onto the greasy stains and the chalk powder will absorb the grease, allowing for the stain to easily be removed once washed in your washing machine.