Just use some dry shampoo ; p I have two favorites…..
Big Sexy dry shampoo is my favorite! It creates beautiful volume while absorbing oils. It’s great for creating a updo on “dirty” hair. The only downfall is you will really be excited to wash it out of your hair by the end of the day. So I recommend using this one on the very last day of “dirty” hair.
Redken’s Powder Refresh dry shampoo leaves your hair smelling amazing and clean! There’s no hold factor and no unsightly white residue! Also, this stuff is great to banish nightlife odors ;p
Beauty and the Brain 