I am the beauty and fashion commerce writer. Dressing for a job interview is deceptively complicated, and even experienced professionals can make mistakes when going in for a new role, experts say.

Forbes contributors publish independent expert analyses and insights. Robin Ryan is a career counselor who covers job search and careers.

As someone who's had more than a handful of "final stage" job interviews in my career as a journalist, I can tell you that, unfortunately, it never gets any less nerve-wrecking. The interview itself ...