45%
55%
65%
And I think that's that. I freely admit that I used the few 75% codes I got. Unfortunately I am not that great at planning book purchases, mostly I impulse buy, and therefore using multiple tabs for checking out with the same code does not work for me. This requires fairly careful planning

. And I have no idea how people get all of these spare 75% codes. I can play the game, but I either don't know something about logging in, am not fast enough or don't have enough time. Or all of the above.