Ravels on the edges of backing fabric pluck my nerves. so I've started serging the edges before putting backing on the frame. I also do a lot of scrap quilts and sometimes it works to serge the edges of the blocks and get a sturdy seam to anchor little strips before joining the blocks. A good friend gave me a serger that wasn't in good working order, she had been given the machine by another lady but my friend already had one. Once it was cleaned, oiled, threaded right, needles changed it's a fun toy and I'm trying to teach myself serger techniques. Fortunately the manual came it!