Here's the basic organizing scheme: small scraps in plastic bins, sorted by color; fat quarters in storage boxes; anything between a small scrap and a
fat quarter rolled and tied and standing in a storage box; anything
larger than a fat quarter made into a "mini bolt" (find out how to make your own mini bolts here!):
I've always folded and stacked my fabric on the shelves, and that was a huge pain because every time I pulled a piece out, everything on top of it got a little more disorganized. Now I can slide a "mini bolt" out and back in with no problem, plus I STILL get to see (most) of what I have available.
At some point I will move all that fabric into a closed-shelving system to protect it from sun damage, but for now I'm inspired by it, and it's not in direct sunlight so it should be ok for a little while.