2. I wet my hair and hands, and put the oil in my palms, and rub my palms around the end of the hair that needs it- I stay a couple inches away from places that don't. So use the oil, and then wash it with the baking soda. You basically are "conditioning" before you "shampoo", and that will strip out any extra oil. You can't do it afterwards, but it doesn't work so well in my opinion. I like to put the oil on and let it soak while I shave my legs. I don't know if this is necessary, or not, but I do think it is a little deeper conditioning.
If worse comes to worse, you can just give your hair an extra wash if it ends up greasy. I personally am not a fan of coconut oil, because I have yet to use it in a way that doesn't result in greasy hair- I think I take too much.