We love bright, funky manicures as much as the next diva, but sometimes there's nothing chicer than a nice, clean buff (it's also a great idea to give your nails a break from polish). Revlon's new Crazy Shine Nail Buffer gives nails a high-wattage glow that lasts up to three days—plus, the unique teardrop shape makes it super-easy to use. Need to add shine to polished nails? Rub the white side over your manicure for instant luster. Revlon Crazy Shine Nail Buffer, $3.49, available at drugstores and mass retailers nationwide.