On tour, there's dry shampoo - I use the one by Bed Head.
A travel-size dry shampoo is the answer to many problems.
My hair is super fine, so I love using Batiste Dry Shampoo to give it volume after I shower and dry my hair. It also gives me extra body and texture for when I choose to wear my hair in a French braid.
Unite has a great dry shampoo called 7Seconds. After a hot yoga class, when I'm super sweaty I spray this on and my hair comes back to life. Miraculous!
I actually love my natural hair when it's in a twist out and it's been slept on for five days and revived by the steam of the shower.
Let Pirelli's / Miracle Elixir / Activate your roots, sir... Keep it off your boots, sir- / Eats right through. Yes, get Pirelli's! / Use a bottle of it! / Ladies seem to love it... Flies do, too!
I rinse my hair with Coca-Cola sometimes. I don't like my hair when it's washed - it's fine and limp - but Coca-Cola makes it tousled, like I've gone through the Amazon or something.
One tip is to try and give your hair some time to relax. Don't over wash or over dry it.
I always use dry shampoo, even if my hair isn't oily. It gives me so much texture and that bedhead vibe.