TRICKS OF THE TRADE: Leave the Katy Perry coif at home and sweep hair into a sleek, high ponytail, like those spotted at Alexander Wang and BCBG Max Azria. If you have a short, funky cut, don't sport mismatched roots — freshen up your hue with a 10-minute color rinse at home if there's no time for a salon appointment, suggests celebrity stylist Wendy Iles.
OBJECTIVE: Look like a closer — not a