Just FYI for anyone trying the Bronners tea tree soap and conditioner.
Based on recommendations from SF I tried the above method for almost 8 months (using PB's method described in the SW&D hair thread) with pretty horrible results because of dryness which led to excessive dandruff. I've always had problems with mild dandruff but it's been so much worse since using the Bronners products. Like a fucking avalanche every time I run my hand through my hair. The tea tree soap is far too harsh for my hair.
Be aware that just because this method is being hyped by a few who've had excellent results doesn't mean it will work for everyone
Personally I have to wash my hair every morning with shampoo to control dandruff for the day. Once I go to sleep it's back by the time I wake up. Even when I had a buzz cut and used head and shoulders/nizoral/selson blue my dandruff problem was still there when it grew back. Shame since some days you don't have time to shower or wait for your hair to dry but I have to do something about my dandruff. Also my hair looks much better just rinsing it with water.