It looks like many of us use very similar approaches. I, too, primarily sort by color then by 'genre' i.e., batiks, plaids, patriotics, Christmas/winter, 30's, Asian etc. I have my FQ's in LARGE tubs that are readily handy. As others have said, do what works for you. There is nothing wrong with periodically re-organizing your stash and 'visiting' your fabrics. I re-fold pieces, rearrange them, etc. Most of all - - - enjoy!!!
Jane