1. A offering a welcome refresh to hair that's almost ready to be washed. Almost.

dry shampoo powder

amazon.com

Promising review: "I love that this is a powder and not a stinky aerosol spray. That also means that this lasts MUCH longer. I use it every other day when I don't wash my hair since I have very oily roots. I've been using it for almost a month, and barely any is missing out of the bottle. A little goes a long way." —R.G.