I can think of a few household things for the sewing room but not in place of sewing things. Lip stick case makes a handy portable spot to store your bobbin in. Painters tape to quilt along. The mechanic mirrors on a telescoping wand to check under your long arm machine. Magnetic telescoping wand for picking up pins off the floor. Telephone book pages for foundation piecing. Adding machine tape for making pieced scrap borders. Bed risers for your table legs to save your back.