I found it difficult to keep tack if fabric. Since I like to iron on interfacing, I began to end up with interfacing everywhere. So I decided to buy fabric and the same length of interfacing if needed. I then pinned on the interfacing to the material (bumpy side down) and iron it on. Then I hung the material so that it could be ready and cut when needed. A simple time saver. I am starting to learn that material preparation and measurement takes more time than the actual sewing!