At the very end of the film, Tess's first impression of her secretary, Alice, starts with her seeing Alice sitting her office with her feet on the desk using the phone. When Alice is understandably embarrassed when Tess arrives, after getting settled in Tess makes a couple of things clear. She only wants Alice to call her Tess, only get her coffee if she's getting some for herself first, and they'll just take it from there. It's very sweet and understated and just shows what kind of future Tess has for herself by learning from Katherine's bitchiness.
The warmly optimistic and hopeful theme-song "Let The River Run."
Real Life example: Antonio Banderas likes to tell of when he came to America and was struggling to make it as an actor, that he would inspire himself by looking at the beautiful woman on the billboard outside his hotel. That billboard and that woman? Working Girl, Melanie Griffith; they developed Romance on the Set when their paths finally crossed and they've been Happily Married since 1996.