Every girl fantasizes about having the ultimate career. One mixed with a dash of celebrity status, an incredible salary and the daily prospect of interesting and different challenges, all blended to create a sizzling image of adventure and achievement, the ride of a lifetime. But what’s the recipe for success? How do you go from wanting it to getting it? And what, really, does it cost? We’ve tracked down the best of the best – from fashion, film and all forms of media – to reveal how they landed their killer careers and made their way to the top.