Once you figure out how to style a slip dress for all seasons, you’ll realize it’s the perfect transitional piece. When summer ended (RIP), I used to pack up my well-worn slip dresses for the season ...

In the 25-plus years since Carolyn Bessette-Kennedy died, she has remained a perennial style inspiration, a source of endless stories (like this one) on how to “steal her look.” But, as we were ...