Milk Run Idle Working Line Published on September 17, 2018 in Frequently Asked Questions for Milk RunsFull resolution (1678 × 663) Milk Run Idle Working Line Illustration of a milk run across two lines with one line idle. This work by Christoph Roser at AllAboutLean.com is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Please credit the image as shown below. For digital documents and web pages please do include the links as shown below. Thank you.By Christoph Roser at AllAboutLean.com under the free CC-BY-SA 4.0 license.