Packing cubes are highly effective, but their value depends on whether you prioritize organization or pure space-saving. Standard packing cubes act like "drawers" for your suitcase, helping you categorize items (e.g., a "shirt cube" and an "underwear cube") so you can find what you need without rummaging and creating a mess. This prevents the "exploding suitcase" phenomenon when you arrive at your hotel. However, standard cubes do not actually reduce the volume of your clothes; they just make them easier to stack like Tetris pieces. If your goal is to fit more into a bag, you need compression packing cubes, which feature a second "squish" zipper that removes excess air. These can reduce the volume of soft items like sweaters and t-shirts by up to 30%. The trade-off is that compressed clothes are more prone to deep wrinkles. Ultimately, cubes are a "game-changer" for those who frequently move between hotels or live out of a backpack, as they significantly speed up the packing and unpacking process.