I haven't tried these recipes yet, so can't say how they work, but they looked interesting enough to share:

You don't have to get your hair wet to use these shampoos so it could be potentially a big time saver. If you hate having to spend several hours per week using the hair dryer, then this could be a great idea for you to try out over a weekend.

If you are not seeing much of a result with these recipes, you could try grinding them very finely - which would increase the contact area the shampoo will have with your hair.  Good luck!