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!
One tip is to try and give your hair some time to relax. Don't over wash or over dry it.
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.
I always use dry shampoo, even if my hair isn't oily. It gives me so much texture and that bedhead vibe.