I use the comic book boards for my personal fabric stash. For my charity stash, I don't. The charity stash is a disorganized mess and I fold the fabric all different ways. I constantly find fabric I didn't know I had.
The comic boards force me to put my fabric away in a neat and orderly fashion every time I get it out (even though I don't want to). I have used 500 of them and am about to order another 100. These are the ones I use
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I use a Size 19 rubber band to hold the fabric on the comic board.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 It keeps the fabric in place when I am moving them around and allows me to get a small piece such as a fat quarter to stay on. Anything that doesn't fit on a comic board with a rubber band goes with my scraps.
I do have to ruler fold wide backs. I have gotten as much as 9 yards on one comic board back.