"A waste of your time and money," says dermatologist Leslie Baumann. Toners were invented to rebalance the skin's pH, because cleansers used to leave a soapy film on your skin that had to be removed. Today's cleansers no longer leave that film, and if you use a well-formulated cleanser, your skin's pH won't need to be adjusted ".

If you really need a reason to put your feet up, a foot mask offers one. Otherwise, you're better off using an exfoliating moisturizer to smooth rough spots and slough off the dead skin on your feet.

Unless your lips are super flaky, a balm alone will keep them silky. If your lips are flaky you don't need a special product for exfoliating your lips. Simply wash over your lips with your salicylic acid-based facial cleanser.  Apply lip balm afterward or the next morning, wrap a tissue or face cloth around your index finger and rub it over your lips. You'll remove the flakes without risking irritation.

No lotion, cream, foam or pill will get rid of cellulite. Sunscreen helps prevent the UV-induced collagen loss that makes the skin become slack and look more dimpled, though, so always wear it when you're baring your legs.

You don't need a product specifically for your neck. Treat your neck the same way you treat your face: Apply sunscreen every morning and a retinol cream every night.