I spend summer weekends in East Hampton and I always bring more than I need. Any tips? —Geena Oritzia, New York, N.Y.

Nailing down a foolproof packing strategy is key. For quick trips, stick to a few pieces that are interchangeable. These staples prove less is more.

No sense in packing two bags; pick one that doubles as a beach tote. Chanel; price upon request.

A tailored buttondown is a weekend must-have—especially when made of ultra-soft cotton. Marine Layer; $68.

Add a bold necklace to dress up a casual look. Pono by Joan Goodman; $240.

The perfect swimsuit does double duty. This versatile maillot can be worn with or without the straps. Guess; $93.

Stash makeup or jewelry in a multifunction zippered bag, then use it as a clutch. Rebecca Minkoff; $95.

A cover-up goes from beach to beachside dining: just add capris and a tank top. Louis Vuitton; $1,260.

White shorts work with a T-shirt for a bike ride or over your suit for a stroll in town. White House Black Market; $64.

Mimi Lombardo is the fashion director at Travel + Leisure. Have a packing dilemma? Need some tips and remedies? Send your questions to Follow @tltripdoctor on Twitter.