I tried the Jonathan Spray Dirt on dry and wet hair and I love it. Basically, the dirt makes your clean hair feel like you haven't washed it in two days, minus the grime. It creates texture to your hair so the curls stay and separate.
I am still going to experiment more with the Dirt and I will try to post some pictures. I would never tell someone to go buy $28 of Dirt from a man in LA named Jonathan without proving it worked!
Now, go make your own dirt with your hair products. I am going to bed.