Circle edge double turn
It might be tricky sometimes to double turn a circle edge of a skirt or whatever garment piece you making. it appear to be crooked at the end or doesn’t work for you at all and you ended up finishing edge with serger and a top stitch. there is also an option to tack hem by hand but that can take too long.
instead try making a foot width stitch all over the circle edge and this stitch will serve you as a reference point on where to fold your hem.
as a result you will have a perfectly folded hem.