The only time I see what I would call excessive fraying is when I over handle something (like having to rip out multiple times ...lol) or using open weave fabric such as the Japanese Taupes by Daiwabo. I am careful in my handling of these - trying to minimize pressing, I use real starch on them and shorten my stitch length considerably. Even a small zigzag would be too bulky and I agree with you that fray check way too expensive. This method - especially the shortened stitch length - works for me.