11/30: success

...with an early-morning trip to Staples to get printing supplies that ran out during a big printing job last night.  Hurray for Staples' website:  last night when I ran into trouble, I was able to see that they had what I needed in stock, so I could nip in this morning and get it.  One of the things was in storage rather than on the shelf, so if I had gone to the store without checking online first, I would have thought they didn't have it.