To pack two weeks of clothing in a standard carry-on for a 2026 trip, you must master the "Capsule Wardrobe" and the "Bundle-Rolling" technique. Focus on 5–7 days' worth of versatile, lightweight layers that can all be mixed and matched (e.g., neutral colors like navy, black, and grey). Packing cubes are essential; they compress your clothes and keep your bag organized. Wear your bulkiest items—like a heavy jacket and your largest pair of shoes—on the plane to save space. A "pro" tip from 2026 travel communities is to utilize sink laundry: pack a small bottle of concentrated detergent and wash socks and underwear every few nights. By choosing high-performance fabrics (like merino wool or technical blends) that resist odors and dry quickly, you can easily rotate a few outfits for fourteen days without ever needing to check a large suitcase.