We travel often and usually share 2 checked bags as a family of 4.  It is frustrating to have to dig through things to find what we need.  I started using these packing cubes in a different color for each family member.  It is brilliant!  The cubes are lightweight with strong material and sturdy zippers.  The mesh panels allow you to see a bit of what is inside and allow air circulation.  The size are perfect for organizing types of clothing.  The handles are strong.