Just a quick update on going no-shampoo. Things have been going much better than I expected. For the first couple weeks my hair was totally normal and felt and looked clean. In fact, a friend of mine, after finding out I was only washing my hair with baking soda, looked at my hair and said, "Your hair looks clean to me!" haha! These past couple weeks my hair has been a little more greasy than usual, but that just may be because I'm not washing it as often and so it's just adjusting.
A big thing that I noticed is that with my thick hair I have to be very liberal with dousing my hair with the baking soda/water solution. I have to make sure my hair is sopping wet with it, that it's getting to my scalp and everything. I scrub it around and then rinse it out and then do the vinegar rinse. One time I did not thoroughly douse my hair with the baking soda/water and my hair wasn't that clean.
My scalp has also been a little itchy, so I've been making sure to rub some of the vinegar mixture on my scalp. If that doesn't help, I'll try honey next. Honey is a lot more moisturizing than vinegar, but if you tend to have oilier hair, vinegar would work better.
I'd say the biggest downside is that the baking soda/water is stinkin' COLD when I pour it on my head in my nice hot shower. Not very nice, but maybe having it sit in the hot shower with me on the floor of the tub for awhile before I use it will help solve that problem.
So in the end - Things are still going strong and I have the cheapest shampoo ever! Woohoo!