I use  Lulu Organics Hair Powder as an alternative to dry shampoo, it’s an all natural product and makes your smell ridiculously delish.  I use the travel size and pop it in my handbag and use it when I am on the go and don’t have time to wash my hair.  It’s an ALL organic, talc-free silky powder so it doesn’t irritate the scalp.  You just sprinkle a coin size amount of powder into your hands and rub through the roots of your dry hair.  I use the Lavender + clary sage scent.  It’s been featured in many mags including Elle.  I buy it here or in in Australia here.