If you have a closet to spare lol. I built three book cases from K-mart and put them in the back of a closet. It holds tons of fabric all organised. The door had to come off the closet for this.
In the front of the closet I put a rod for hanging clothes, way up to the top, so the closet is still usable. There is still lots of room in front of the cases, so I put a long bench and stuff can go on that too. I didn't really loose a closet by doing this as only the back wall is being used. The clothes rod is at the very top of the closet so I can easily see the fabric if needed. I have other places that I stash fabric too.
Above the cases is lots of space so I put board over the cases and the large bolts and backing and painted fabric are stored up there.
I have an 8 by 6 cabinet, all shelved and loaded with fabric in the doll and quilt room....I have two dressers full of fabric.
Everything is out of the way and in order. I can't deal with stuff everywhere, it confuses me.
In the studio, there are at least three large bins full of fabric too and two bins of decorator swatches. these bins are labled and stored under a table or stacked up in a corner so I don't loose much space. I'm happy and I use all my fabrics all the time.
I know where everything is. When I am doing a project like the snake river now, there are two piles of fabric laying out on the trunk and table and what ever is left goes back where it belongs lol, as the next project will be different, it might be a doll etc. lol