Best Bet: A.P.C. Brooch

A.P.C. brooch.

With temperatures still warm and balmy, it’s too early for fall threads, making small-ticket accessories the ideal way to update the same clothes that have been in rotation since May. There’s a vintage, heirloom feel to this fan-shaped brooch from the French retailer A.P.C., which looks like it could have been found at a flea market in Paris. Though subtle on its own as a decorative piece, using it to cinch summer dresses and blouses can make them feel fresh.

Brooch, $60 at A.P.C. or online.