you have a sewing room, a file cabinet can be the best answer to organizing supplies and fabrics. give it a coat of paint (something other than gray or beige) and decorate it with fabric if you like. you can store your notions in one drawer, fabrics in another and items under construction in yet another drawer.
use it as storage space in the kitchen or storage room. you can also use it in the family room as a place to store homework and arts and crafts supplies for the kids. paint the cabinet a bright color, or paint it black and use magnetic letters to write the names of each 