Originally Posted by
Stitchnripper
The way I have used recently is to zig zag over a thick piece of thread (some recommend dental floss) without catching it and then gather to desired length and when done sewing, pull out the thick thread/floss.
As an apparel sewer for over 60 years, this is what I did. I used buttonhole thread. After you pulled out the thread, you could even use it over again. I guess new quilters don't realize how many ideas from apparel sewing can be used on quilting. I also love the narrow hem produced by the serger.