Fashion can be as fleeting as fireworks. What might be trending now may be passé tomorrow. This year, the big four Fashion Weeks around the world--New York, London, Milan, and Paris--offered a mix of loud, subdued, chic, and outrageous styles that aimed to set the fashion trend for the season. However, none of these street styles, leopard prints, and haute couture will elevate your style if you don't have the hairdo to show for it. Doron Bartfeld, founder of Mensch Hair Studi