My sons say I don’t have stash….more like a small fabric store! My closet has shelves arranged in a U shape. I put solid colors or fabrics that read solid in plastic buckets. I have holiday fabrics in separate buckets, same for themes — pet fabric, beach themed. Flannel goes on one shelf, baby fabric on another — although recently I’ve put kits together to make baby quilts. Those get tied up with yarn on the baby shelf. Other fabrics get stacked on a shelf — mostly florals. I also have a cabinet that has precuts and any kits I’ve put together to make charity quilts. Good luck organizing.