The Milk Kanban system, as discussed in the comments, serves as an efficient communication tool that minimizes emotional overhead. Users simply take a ticket and place it in a designated spot, indicating a need or request without the complexities of traditional issue tracking systems. This aligns with the original concept of Kanban as a visual signal that conveys various messages such as capacity or requests. The conversation also touches on the idea of 'affordances' in design, highlighting how systems like these facilitate smooth interactions between users and their environment. The practical applications mentioned include self-explanatory systems that remind users when supplies are running low, making operations more seamless.