I treated my layered confection of a hairdo to a blow out while I was in New Orleans with the instructions "make it big, as much volume as possible, think 50s housewife/pinup" 

This is day 3 of that - with a generous root tease and copious application of dry shampoo (I like the alterna clear one) and some finger tousling (but no curling iron) 

This is one situation where my growing out layers perform exceptionally admirably. Since I refuse to cut anything and will only grudgingly allow a bit of shaping to "blend my layers in" some styles very obviously show the many layers of my hair but this one really shines. Now to figure out how to blow it out like this at home :)