I created an old fashioned style apron to wear when quilting and longarming. For a pocket, I created 2 long interfaced rectangles one slightly larger than the other. Sewed the smaller to the larger on 3 sides. And sewed vertically every so often to create divisions in the pocket according to the size of the tools I want to keep in them. Then I stitched all around the larger one to anchor it to the skirt of my apron. No more threads all over my clothes and my tools are right where I need them.