Basically, you take some leftover paper nonsense, and make it into a book. I recommend that it be around the size of a cigarette pack. What you’re going to do with it is this: tape junk into it, write inscrutable things, tack on useless accessories like strings and paper clips. It’s a field journal of Actual Reality which is a long non sequitur of half baked observations and gum wrappers that no one but you is really aware of.
Once you’ve taped enough band aid wrappers to your bin book, filled it with enough senseless thought fragments, it will take on a shine like sea glass from the churning surf of your aimless additions. You will need to know where it is at all times.
That’s how it works.