While sewing my Paco Peralta Cassock Coat, I was reminded of a tip that I find very useful. Frequently, when sewing things like in-seam pockets and linings, I need to mark the points where the stitching starts and stops. To do this, I put two pins right next to each other at the point where I want to start or stop sewing. The double-pin gives me a very distinct visual cue. And the nice thing is that I can use this with any type of pin I have on hand – glass-head or steel.