It looks like the point to light system has moved to a new level. For the most part, we are getting deliveries with the slip on the outside of the grey bins indicating "returns" vs. "holds".
The slips will read like this: "Waltham Returns" OR "Waltham Holds".
This is truly marvelous because it means that the bins saying "holds" are really filled with "holds, holds, and nothing but the holds".
Slips labeled "returns" denote bins filled with returns.
Now, should you see a "slip up", i.e. a bin that should have been sent to Watertown or some such, let me know. I will let the Mass Library System know.