The foundation of an efficiently packed suitcase begins with the heaviest and bulkiest items, which should be placed at the bottom near the wheels. This placement prevents the bag from becoming top-heavy and toppling over, while also ensuring that lighter, delicate items aren't crushed under the weight. Start with your shoes—stuffed with socks to save space—and heavy items like hair dryers or thick denim jeans. Following this base layer, use the "rolling" method for shirts and lightweight trousers to fill in the gaps and create a flat surface. By layering heavy items at the bottom and rolling softer garments on top, you maximize every square inch of space and maintain a balanced center of gravity. In 2026, the use of "packing cubes" has become the gold standard for organization, allowing you to create modular blocks of clothing that can be stacked like Tetris, further protecting your belongings from shifting during the turbulence of transit or the rigorous handling by airport ground crews.