Skip the bookstore lines (and prices) and look for book rentals instead.
Maybe your college bookstore is a peaceful place, filled with plush chairs and moderately priced textbooks. But if you attend a normal college, it's most likely swarming with students, all battling for the same over-priced titles. Next time you get a syllabus, check out Chegg and rent your books instead. You should be able to find even your most expensive textbooks for a decent price, and you won't have to hold onto them after finals week...