Sometimes it’s more entertaining to watch the show on the street than it is to watch the show on the runway. That’s how I felt during Paris Fashion Week, especially any time I spotted a well-heeled attendee who hadn’t been dressed by a brand (a trend that has gotten more and more common over the years). On the runways, we saw bags on chains at Nina Ricci and Valentino, oversized clutches at Balenciaga, and scarf-wrapped handles at Louis Vuitton...