Keep your underwear under wraps: When traveling, pack intimates in a pillowcase within your suitcase so they don't get lost in a pant leg or emerge at an airport security checkpoint.
Protect party dresses: Slit a hole in the top of a pillowcase and slide it over a hanger for a durable slipcover.
Fend off dust: Use a pillowcase to cover a sewing machine or any other small appliance that collects dirt in its crevices.
Make lettuce last longer: After shaking off excess water from just-washed greens, place them in a clean cotton pillowcase. Pat dry and put the whole thing in a plastic bag in the refrigerator. The moist cotton will keep the lettuce fresh longer than a plastic bag alone.
Fashion a child's smock: Cut a large neck hole in the top of a pillowcase and two smaller armholes in the sides. Gather the fabric between the neck hole and each armhole and tie with ribbon to help the smock sit on narrow shoulders.