Forgot to mention, re irony of finding the list in a hoarder's house: During one clean-up, we found four copies of a book on how to declutter.

Now that I think of it, we have never had more than three copies of any other book, and in this huge go-through we've at most found duplicates. Do you think the decluttering book was self-replicating? Maybe to make more clutter so people would buy more copies. ;-) Actually, I think one friend gave us two copies on separate occasions!