We implemented 5S a few times within our manufacturing warehouse and had a lot of success with it. However, we also found that the most difficult step to 5S is, Sustain. It’s essential to have a calendar in place to make sure that your 5S project is being sustained and continuously implemented. Employees like to fall back to their old habits and unfortunately, they also like to take shortcuts. Just because you implemented 5S doesn’t mean it’s over. It’s essential that someone takes control of the project even after the project is complete. This is all based on my experience.