I can see this as a problem when choosing fabric for a project. I have to have organization in my sewing room, as well as throughout my house.
If you have a closet you can install wire bins for your fabric.
They will help you organize your fabric so you can see the fabric, this allows you to pull out the correct piece. They pull out for easy access. Underneath my bins, I have a coardboard box computer paper came in for my scraps. They are pressed, strips and squares are separated.
When this box gets full I make a charity quilt.
I would definitly work out some sort of organization for your fabric stash. :D