Wow, all that time organizing! When do you all sew! I had half of the two car garage remodeled into a studio (while my husband was working out of town). I use very tall shelves (designed to be used in the garage to store tools and garage stuff. I sort by fabric type. Then by color. Knits, flannel, wool, decorator, while quilt fabrics are folded and stored separately on shelves by color. Holiday fabrics are stored on a shelf separately (some are metalics, plaid, cotton etc). I sew professionally and I need a fabric type before I might need a specific color. I have so much that it is laying on the floor as there is not enough room for more shelves.