Does your back bother you after a plane trip? Learn an insider tip from a physical therapist. Teresa Maldonado Marchok PT and certified Pilates instructor uses an inflatable miniball on every flight she takes. It’s small enough to fold into a ziplock bag and keep in your purse. Once at your destination, you’ll have an exercise prop with you for core work and more. This tip is also a spine saver to use in a chair or in your car!