oil free hair method

I have a friend (I'm not going to mention her name because I don't know if she wants to be known on the web) who asked me if I had come up with a homemade shampoo yet. Well, that one is tricky. Some things are just cheaper to purchase at the store. I don't buy the cheapest shampoo because I am particular with my hair type, but I don't buy salon shampoo. I start from the cheapest work my way up until I find one that works for me. I'm sure there are natural/organic (without added chemicals) shampoos available, but I'm not familiar with them.

My friend went on to tell me that she has very oily hair to the point that she doesn't even use conditioner. I have read in the past that you can do a quick dry wash shampoo with baking soda if you are pressed for time. You sprinkle baking soda on your hair, leave it in a minutes or two and comb it out. I gave it a try recently. It made my naturally dry hair feel even dryer. Not to mention, that it was also very difficult to run a comb through my curly hair. So in my theory this method would work very well for my friend and anyone else who has very oily hair. If you try this, please leave a comment and let me and others know how it works for you.