Crafts decluttering was a lot of help at end of month, even though I have so much more. I organized several containers (like rubber maid or ster ite) and even put little notes in a couple to remind me that more fabric, for instance, was in another project container, if I needed it. So later, that will be instant knowledge instead of trying to remember!
Big help that everything about ribbons/twine/string is in one container now. Not all will be used for the same kinds of things at all, but gathering them in one place so sensible for me.
Index cards are so much help with any partially-clear container. I write (boldly, like with a Sharpie) what's in the container and place it inside facing out in the direction I'll see it. Then I can put that container almost anywhere but see right away what's in it. And the card is protected but visible. It doesn't even need to be taped, so I can change it anytime.