http://www.pocketmod.com/

Many things make this little personal organizer special, here is a list.
  1. It fits easily in your back pocket or purse.
  2. It's as cheap as one piece of paper (Because that's all it is!)
  3. It opens like a book. Leading to easier to find, more organized notes.
  4. The first page has a pouch, big enough to carry a business card!
  5. Customizable with "Mods" tailored to your needs.
  6. It's free and fun!
Create: http://www.pocketmod.com/v2/

How to fold: http://www.pocketmod.com/howto/