The instructions for our new Toto Drake said not to use in-bowl cleaners because it could damage the fittings and said not to use chlorine products. Being somewhat of a germ freak, I had always cleaned my toilet bowls by pouring chlorine bleach in them and scrubbed them all over, let the bleach sit for about 5 minutes and then flushed. (I wonder if I was damaging all my old toilets?) What do all of you out there use to keep the bowl and under the rim clean and sanitized?