Hi, several years ago before I was doing much as far as crafting or sewing(quilting) I saw a show where a guy showed you how to make a continuous bias tape by sewing 2 ends of a rectangle ?? together, taking the needle out of your serger and using it to cut. For the life of me, cannot get it clear in my head or how to sew it and cut it. Anybody do this or remember this? I would appreciate your help. TIA