Kinky, curly, textured, relaxed, or however else you would like to describe your hair doesn't need to be washed every single day. Over washing will strip your hair of it's natural oils and make it dry and damaged. At the most you should only be washing your hair with shampoo twice a week. Please note, I said at MOST. Lathering up with shampoo twice a week would reek havoc on my hair, but everyone's scalp is different.
My Regimen for Washing:
I only shampoo once a week
If I co-wash I do not use shampoo, instead I use a conditioner and vigorous motion to cleanse my scalp.