Looking forward to hearing how these work for you, Donna! I've never tried the shirt envelope; please report back on specifics of that.
Everything delurked said. I kept reading her post thinking there might be a "downside" section. The only one I've found is the temptation to use the cubes for other purposes when not traveling. Before having used them, they seemed to me like a superfluous purchase that couldn't be much benefit. So I can empathize with the agonizing.
All of my cubes are from Eagle Creek, "Pack-It Original" cubes. Perhaps not very original, but indispensable. The plastic lining in the water-repellent side of the clean/dirty double cube is showing signs of disintegrating after only five years, never exposed to extreme heat.
I don't love Eagle Creek's pouches for travel, so repurposed them for power supplies and small camera accessories; didn't ever find a use for the largest pouch.
Here are the pouches I like. They're kind of overkill, but a pleasure to use.
https://www.dsptch.com/products/accessory-cases
The set I bought came with a vertical pouch as well, which didn't suit me, but Mr Max was very happy to take off my hands and uses regularly as a pencil/brush/pen case; it stands solidly on its bottom and the sides can be turned down when unzipped.
I have a few of these as well:
http://www.thesavvytraveller.c...../1home.htm
Though I use them for handbag sanity rather than for travel. The colors are, as Janet pointed out, helpful visually.
My old workhorse, perfectly compartmented hanging toiletry case was from Deuter. Silly me, got rid of it when I minimized after leaving the job that involved 80%+ travel, and the kind I had is not made any more. Love to hear any current suggestions.