A versatile wardrobe is key to dressing efficiently in the summer. Opt for neutral colors like white, navy, khaki, and light blue, which are easy to mix and match. This approach allows you to create multiple outfits with fewer pieces. Include versatile items like linen button-down shirts, which can be dressed up or down, and lightweight chinos or linen pants for cooler evenings or formal occasions. Avoid packing 'one-trick' items that serve only a single purpose.