Great photos!
I buy cubes and folders in a variety of colors and use each color for a specific sort of item as well as His and Hers when we are traveling together.
I have my husband's shirts folded by the laundry in what is called a 'salesman's fold' (slightly smaller than normal). Those shirts fit in the 15 inch packing folder.
I use the tube cubes for his socks (and when packing for myself, my stockings and such.)
I use medium cubes for his underwear, t-shirts & pj's.
I use the large cubes for his polo type shirts and a separate very large cube for his slacks.
I prefer the bags sold by E-Bags over the Eagle Creek as they are lighter in weight and cost less. I machine wash all the cubes after each trip and hang them up to dry.
For cords, electronics and etc I use the small cubes that have a padded bottom. May have gotten those from Magellans. Can't remember.
I use dry cleaner's bags to pack his shoes.
Yes, we are obsessed about packing.