Business-Dinner Tip: Wear at least one luxe classic piece — maybe a limited-edition leather trench.

TRENCH $1200, 30th Anniversary BR Monogram; bananarepublic.com.

NECKLACE $95, Juko at Supplements NY; urbanchiconline.com.

BODYSUIT TOP $89, Sisley; (800) 535-4491 for stores.

SKIRT $168, Classiques Entier; nordstrom.com.

BAG $375, Aaneta; amazon.com.

SHOES $139, Sam Edelman at Eilatan; (949) 453-1222.

What Do You Think?