This pen-stroke solution is a great example of the smallest of steps we can take towards improving quality. The next steps may include making the using white-on-black or yellow-on-black marks to visually stand out, creating and posting one-point lessons around the machines, and starting an autonomous maintenance routine to prevent the marks fading or drift out of the target zone. These are just a few examples of the thousands of chalk marks that we can all make once we realize that the these smallest steps towards quality improvement are the most important ones in the long-term.