I have a rolly crate that I put legal hanging folders in. In each folder, I have a plastic Craftkeeper and I have them divided into colors, and pattern papers with the major color. So the folder has 1 for blues, and 1 for blue pp. I started this years ago, and altho, I use scraps on 98% of my LOs, cards, as many as I do, I am up to 2 rolly crates. I can roll them out of the way, or slide them under the table...... whatever...
And I keep 99% of my scraps.
Its amazing sometimes - to find just the right piece for something. One I never would have thought of. Its like finding a treasure! lol