Don't skimp on the sunscreen

Two tablespoons. At the very least. That's one ounce of lotion per application -- and don't forget to reapply. You know what this means? One eight-ounce bottle of sunscreen should never last more than a few trips to the beach.

I know: Sunscreen is expensive. But it's worth the investment, because skin cancer costs a whole lot more than sunscreen will ever cost. Promise.