Turns out, kale isn't a fad after all—the leafy green has staying power. Here's how to store kale properly so you can always have the best kale salads, kale-laced spaghetti, deep-fried kale, braised kale, wilted kale cromlets, kale sesame noodles, kale toast, kale minestrone, kale pesto, kale tacos—you get the idea (and have we said "kale" enough?).