This little CLEAN/DIRTY sign is a blessing. I have always known whether the dishes in the dishwasher are clean or dirty. However, hubby and my daughters have never been quite sure, it seems.
Now there is never a question. It is easy to tell at one glance if the dishes in the dishwasher are suitable for use--or ready to remove from the dishwasher and placed back in the cabinet. Hubby has surprised me a few times by doing this chore. Evidently, it makes him feel like a hero. :^)
It is also a snap to know when the dishwasher can be loaded with dirty dishes.
I think all dishwashers should come with a little sign like this one.