I bought a sketch pad that is 3.5" x 5", it had a wire spine, a hard back, and the paper was 60 lbs weight. Oh! it was $2.50, score!
Then at home using inkscape, a vector graphic drawing program, I drew out the kind of graph I wanted which took a little while but the cool thing about inkscape is that you can edit the svg file by hand (it is just xml) and in no time I had regular-expressioned my way into a final grid:
(This image will print a 3.5"x4.5" sheet if the printer is set to 300 dpi.)
Then it was just a matter of taking the binder apart and printing the pages (about 100). One problem was the pages are very small so they did not just go into my printer, I had to tape each page to a larger page and then print. It was only a little painful but well worth it!! I can't wait to try it out.
If there is interest, I can post the svg file as well... Let me know.