Got roots? Just a quick spray with Eufora Touch Up dry shampoo will cover them right up while refreshing your hair in between washings. I discovered this fabulous product the other day when I was getting a blowout at Plush Blow in Rye (53 Purchase St 914-967-7100; plushblow.com). Stylist Andrea Dicostanzo recommends covering your clothes with a towel to catch any stray spray. Available in dark, light, and clear, $28 at Plush and other professional salons.