Irene, no need. :lol: I have just about everything known to man for marking. I sometimes use a hera marker, which puts a crease to follow. For dark fabrics, like black, I found the neatest white pen at the shop. It doesn't show immediately but within a few seconds it leave a very thin white line that washes out or even dampens out with a rag. I do appreciate that someone is looking out for me! :D