As a rule of thumb, I would submit that if you need to call your floss provider, for any reason, you are probably not ready for this level of oral hygiene.
Bill BrysonI can't fix the world. If you want to make a difference in life, you have to direct your energies in a focused way.
Bill BrysonIf you drive to, say, Shenandoah National Park, or the Great Smoky Mountains, you'll get some appreciation for the scale and beauty of the outdoors. When you walk into it, then you see it in a completely different way. You discover it in a much slower, more majestic sort of way.
Bill Bryson