Philips Sonicare Airfloss
The bad news: Half of us don’t floss our teeth at least once a day. The good news: Philips Sonicare Airfloss makes it easy—and kind of fun—to remove that pesky plaque buildup. Point it between your teeth and click to release a quick, cleansing burst of air and micro droplets of water.
To buy: $90, drugstore.com.