If the world ever ends, you’re going to need to slice zombie brains and keep a diary in one arm motion — and that’s why ThinkGeek brings you the Tactical Notebook. For starters, it’s psychotically durable. That means the blood of the undead will wipe clean from its easy-clean surface and it’s got a much better chance of surviving a tripped land-mine than your foot does. Hooks and loops enable it to hold stuff like a serrated blade, tactical pen, reading book or human ear. Great for camping trips, deep undercover spy-work, and absentminded normal people who tend to spill coffee. Available in two sizes at the Think Geek store, at either $15 or $20.