I have them where I can see them.. I have 3 tall book shelves that cover all three walls.
one for fat quarters, 1930's & Civil War era's
One for bolts and yards: oriental, whimsical, kids and the the last one for anything larger than a fat quarter separated by color.
Wall cd racks hold misc fat quarters
I have numerous see thru sterilite drawers for remnants that need homes, scraps, strips, applique, batiks
30 gal tubs for every holiday: xmas, halloween, 4th, easter, st Pattys, ets, older'fabric,
Backing fabrics on bolts in walk in closet
And my muslin bolts just lay on top of my bookcases
As for my projects they are in colored art bins with all the fabric & stuff needed.. got them at Joannes for 7.99 and they come in pretty colors too..