If there’s one sure companion to summer’s heat and humidity, it’s bad hair. So unless you’re actually trying to look like Twisted Sister, that plastic Duane Reade brush has to go. The gold standard is the British Mason Pearson brush, with its nylon tufts, boar bristles, and daunting $50 to $125 price tag. But you can get that boar-nylon mixture—it both detangles and polishes hair—in a wider variety of styling shapes with Warren-Tricomi’s new line for just $25 to $40 at Barneys. Or stop by Warren-Tricomi (16 West 57th Street, 4th floor, 212-262-8899; 45 Rockefeller Plaza, 3rd floor, 212-218-8650) throughout June and mention this page to get any brush for $20.