Not only are sunglasses fantastic for the same reasons sunscreen is -- protecting your delicate eye area from UV rays and ensuring the aging process doesn't hit your face at full speed -- but they're an additionally great tool for a variety of vacation needs. Did you stay up too late? So what! You've got shades to sport that cover up those dark circles and that pesky puffiness. Just pair them with a bright lipstick and you'll end up looking more vintage than vampirish. Plus, they're the perfect accessory for any daytime outfit and will instantly boost your style confidence.