This is the easiest way I know of adding piping to a flap or a collar. You can use this technique to make an iconic Chanel-inspired jacket, a sophisticated set of silk pajamas or even cushions.
When I was in design school, the thought of adding piping to a collar or to a pocket filled me with horror and I would often result in many sleepless nights trying to finish a garment. That was until, I found this much better way to do it and this is what I am going to share with you here today.
I've created a little practice tutorial if you want to get comfortable with the technique. Of course, if you're going to use the technique on a sewing project, you will need the corresponding materials. The short list below is only if you want to try out the method and practice.
Here's the free tutorial: http://so-sew-easy.com/adding-piping-to-a-flap-or-collar/