Fitting five days of clothing into a carry-on requires a combination of strategic planning and efficient packing techniques. The most effective method is to create a "capsule wardrobe" where every top matches every bottom, allowing you to mix and match items to create different outfits from fewer pieces. Utilizing compression packing cubes is a game-changer; they allow you to organize your clothes and then zip away excess air to save significant space. Many travelers swear by the "rolling method" rather than folding, as it reduces wrinkles and allows you to utilize every corner of the suitcase. Wear your bulkiest items—such as your heaviest pair of shoes, a jacket, or jeans—on the plane to keep them out of your bag. Limit yourself to only two pairs of shoes: one comfortable pair for walking (worn) and one slightly dressier pair (packed). If you find yourself short on space, remember that most destinations have laundry facilities, so you can pack for three days and do a quick wash mid-trip to refresh your wardrobe for the final stretch.