When it comes to your skin, there are few cosmetic skin treatments that are more important—or more impactful—on preventing sun damage than wearing sunscreen.  And even though you can find sunscreen on the shelves of nearly every drug store, grocery, and dollar store between here and Dewey Beach, all sunscreens don’t work the same way.  So to ensure you are protecting your skin as thoroughly as possible from harmful UV rays while vacationing this summer, keep these essentials in mind when packing your beach bags.