I do scrap or scrappy quilts dependent on which box they come from. I have a couple of bins that are only cotton scraps. I do not cut any pieces from FQ or larger pieces of fabric for a scrappy quilt. I also have another bin that contains scraps of poly/cotton blends and garments that have a similar texture. That would leave out thinner fabrics. I also have a bin that holds scraps to be used for crazy quilts. Those are a mix of anything from cottons to lames. Right now that batch is getting to be rather large. For me the fabrics in the latter two bins has to be in good condition.