I sort fabrics that are mostly one color or one color with just a touch of another color by the main color. Then I sort others by children's prints, western and southwestern (a big stack for me), orientals, I love polka dots so have a big stack of just polka dots, stripes, bright geometrics (swirls, squares, etc.) holidays of course, black and white, black, red and white, flannels are kept separately as are fat quarters and scraps. Oh, also have a tub of patriotic (red, white and blue) fabric. Florals are separate. I love cats and sunflowers so those each have their own tub. Oh, and stars are in two tubs. Can you tell that I have a huge stash?