How exactly are you supposed to improve graph paper? A grid of lines on a sheet of pressed cellulose. It doesn’t get much simpler, but Whitelines has come up with a very clever twist. Instead of printing heavy blue or grey lines on a white sheet, they print a grid of very faint darker squares on the usual white background. The result is white grid lines. Graph paper’s great stuff, but your own lines can get lost among the factory competition, a problem Whitelines solves. For extra cool factor, the paper looks totally white when scanned.
The Whitelines site is rather artsy, but their selection is excellent. Whitelines paper is available in grids and college rule, bound by glue, wire, or hard and soft covers. Basically, whatever your preferred writing pad is, they make it. The cheapest version is the glued stuff, which some online retailers (whose reputations are dubious) have pads for just over $1 apiece. Amazon stocks Whitelines paper as well, for about $3 per glued pad.