My ideal hairstyle is loose, tousled waves — think "effortless French girl on Instagram." The only problem? My hair is impossibly straight, and I'm even more hopeless at braiding or using a curling iron. Even though I'm a beauty editor, and I write about hair regularly, my own styling skills are basic at best. I finally mastered the undone wavy look a few years ago after TRESemmé global stylist Justine Marjan styled my hair at an event the brand held for editors in New York.