I'm one of that kind of people that like buying paper notebook such as Moleskine, but when I'm busy moving around with paper notebooks with different functions, they more or less occupy some room of my bag plus noticeable weight... Recently I started joining to mac, and I wonder whether there is "notebook app." that I can buy? For example, if there is this kind of app., I could design by my own the layout of pages in this app.; I could determine the size of pages and the proportion between length and width; for the upper half part of pages I could put 10 horizontal lines and make the lower half part squared. Or I could design the background of pages as for color or could put an image into background...etc. Even though I couldn't really hand-write on the pages but I could choose position on which I type and the font that I use to type with different sizes or color etc. is there any app. for mac like what I say above? THX!