Now that it's finally feeling like summer, the last thing I want to wear is a heavy perfume. August is when I usually switch over to fragrance splashes, which are to parfum what tinted moisturizers are to foundations. These potions have just a hint of fragrance (often with a fruity note), feel as light as water and don't need to be limited to the usual pulse points: hair, legs and clavicle are all splashworthy.

Mark Costa Rica: It not only looks like a watermelon, it smells like one, too—minus the pits. $16, at meetmark.com