As unappealing as its name may be, rats simplify complicated updos and give you mega volume. Critical to a technique that's been used since the Victorian era, hair rats add padding under your hair to create lift and shape. Best employed for formal updos, rats transition a top knot from puny to robust. Choose a shade that's as close to your hair color as you can get, so it's easier to camouflage in your mane.
RSessions Pinup Girl Kit, $24.99, available at Beauty.com.