Mary Catherine got her initial training at Toni & Guy when it was still chichi and exclusive — long before you could buy their hair products at, say, a bait 'n' tackle shop in Llano. Though she's worked at several salons and spas during her more than 20 years in the business, a loyal (and gorgeous) clientele follows her — even to her latest spot at Tranquility Day Spa, which, despite its soothing name, is in the heart of the Galleria's traffic hell. But we'll brave it, just for her painterly touch in mixing and applying our dazzling highlights (and lowlights). She takes meticulous care with each haircut. Get ready to be pampered and, even better, informed on the best way to care for your locks, making them look as good at home as she did in the salon.