After just over 4 weeks of trying the "No Poo" shampoo thing I gave up and used regular shampoo again. My hair never felt clean, it was always kind of straw-like and I swear I could still feel the baking soda in it regardless of how long I rinsed it out. I could never run my fingers through it and I was tired of not being able to put it in a ponytail during the day without a hairbrush handy.
Maybe it was my hair type or that I am still going through hormonal changes after having O but it didn't work for me. I can't say I wouldn't try it again but I might wait a little while before I do.