Ok, so a quick update on my no poo adventure. It still feels really strange to not have any lather when I'm in the shower, but I'm getting used to it. I still don't know if I'm using enough or if I'm using too much. Yesterday when I washed it I left the baking soda solution in my hair for a few minutes before rinsing it out. I've read that you need to rinse it really well, so I did, about 3 times longer than usual. I either didn't rinse it well enough or I'm in that "cotton hair" period. The roots of my hair feel like there's powder in it, kind of like rubbing a cotton ball. It doesn't look powdery at all and isn't greasy so it's fine for me.
My hair isn't super soft yet, but it's not really tangly or anything yet either. So I think I'm making progress. Last night at Target I got a new spray bottle for the vinegar solution so I think that will give me better coverage the next time I wash my hair.
Supposedly it takes 2 weeks for all of the chemicals left from your shampoo to wash away, I'm willing to wait. So far it's not so bad that I have to wear it up or anything so I'm please with the progress.