If you want a variety of colors and light in weight cubes, the best are on Ebags. Eagle Creek is bringing out a new line of cubes that expand with a zipper, but they are heavier.
I organize my packing by size of cube and color. I don't use packing folders. After I do laundry I pack up cubes of underwear and etc and put them in a dresser drawer. Fast packing!
I pack an entire outfit in a cube when the time comes for the clothing. That way a critical item doesn't get left behind either at home on or the road.
I have one cube of electronic gear and chargers. One cube of snack bars and tea.
I buy the Magellan's cubes only for the color choices as those are heavier.
I machine wash all the cubes after every trip and hang them up to dry.