Moleskines (if you believe, literally, everything you read) are "the legendary notebook of Hemingway, Picasso, Chatwin." "Hacking" them means making them do things that they weren't designed to do. As of about a week ago, I own a Moleskine. Here is my idea for a hack. If you have cats who evacuate their bowels in places other than the litter box, it may be of interest to you.