We have a custom bedding and drapery business and these colored cards come in handy to distinguish between work orders for our draperies and other bedding that we sew. The color can determine the one writing the order or can sometimes distinguish the client. The lined front is helpful for either the description or sometimes we even use the lines and spaces to draw the item to scale. The back without lines is also useful for drawing sketches to help the workroom staff get a mental picture of the item they are to cut and sew.