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 think of anything that excites a greater sense of childlike wonder than to be in a country where you are ignorant of almost everything.
Bill BrysonI ordered a coffee and a little something to eat and savored the warmth and dryness. Somewhere in the background Nat King Cole sang a perky tune. I watched the rain beat down on the road outside and told myself that one day this would be twenty years ago.
Bill Bryson