We all know that we're supposed to wear sunscreen, not just at the beach or when we're outdoors for long periods but every day. While it's okay to just rub on a light layer of SPF 15 if you're spending most of the day indoors or during the winter, in the warmer months you'll need to really lather on the sunscreen or it won't do you any good. It is recommended that you use at least two milligrams of sunscreen lotion or spray per square centimeter of skin. How much is that? About two big squirts applied to every major body area exposed, so if you're wearing a bathing suit, that means your head, neck, and ears; your torso, upper and lower, front and back; and up and down your arms and legs, backs and fronts; not forgetting about feet, fingers, and toes. If you feel, as my dad always said, "Greased up!" then you're using enough sunscreen!