You're all doing it wrong. You've got less of a case of dog-earing your textbooks than you do for books that are for pleasure reading. Textbooks can be sold back, the more unused they are, the better. But of course, I'll probably slap you if you damage my books. I couldn't care less if you disrespected your own monetary investment. That's your own damn problem.

Is it that hard to shell out all of nineteen cents for a perfectly good pack of sticky tabs or scrap paper?

Well, I shouldn't be too harsh. I used to fold the pages in my day planner so that I could know which week I was on.