What is it? – Almost everything we do in sewing or quilting requires measuring, marking and cutting.  Because it is so important to our resulting project, we go to great lengths to make very precise measurements.  But once we arrive at that measured point, how do we mark it?  How do we identify a desired point, line, circle or curve?  Keep in mind that cotton, wool, fleece, spandex, or any number of other fabrics all have different textures and fiber characteristics.  Add to that mix having to allow for…