Apply vinegar to the stain, sprinkle with baking soda, let it bubble, then scrub away. Mix borax with water to create a paste, apply to stains, let sit, then wipe clean. For stubborn stains, use ...
Stand in the toothpaste aisle at the supermarket and you'll see whitening claims splashed across the packets and boxes. We're more preoccupied by the brightness of our teeth than ever, it seems. The ...