Salads are among the world's perfect foods, especially this time of year. They can be sweet, tart, savory, spicy, herbal, fruity, and funky, sometimes all at once. But with so many simultaneous flavors, salads can pose problems when trying to choose the perfect beverage. The acidity of a vinaigrette, for instance, and the bitterness of certain greens can be hard to partner up. And how do you decide which flavors to focus on when there's so much going on?