The camera on your smartphone may be intended for taking photos, but it has other uses as well. Here are three:  

  1. If you’ve misplaced your glasses and can’t see far-away objects, view the room through your phone camera to get a clearer picture of your surroundings.
  2. Hold your camera up high, down low, or above, under, or around furniture to take video or stills of areas you can’t easily see on your own.
  3. No mirror? No problem. Look for spinach in your teeth.