|Aw, the doodles you'll draw.|
So, of course the Japanese have invented it: the Multi-Notebook. Inside this ordinary looking notebook boasts six different types of notebooks in one, ranging from the normal lined to graphing, blank, essay and more. Did I mention it's all in one, so you can haul it around and always have the correct format? Can the "Notes" section of your smartphone deliver that? No, I didn't think so.
This is also excellent for students and bored executives during endless meetings (perfect for advanced doodling). And, at just $10, it's a pretty sweet deal for such innovation. At ThinkGeek.