If you've ever seen Tootsie, starring Dustin Hoffman, then you know that the movie hits home again and again about the difficulties involved in making a career as an actor. The plot unfolds around the much-lamented fact that acting is the only art form in which one cannot practice one's craft without having a job. While this is true, actors can, and should, be working on many aspects of their craft even if they are working alone.
Acting...