As a parent of two adult children, with one just having left school and the other finishing a Master's degree, I know that buying textbooks at their staggeringly high prices adds insult to the injury of tuition, housing and living expenses.
Over the last few years, the market has made historic my remembrances of going to the bookstore and paying whatever was marked on the shelf while often vainly trying to find used titles of popular books.
Things have changed: Bigwords.com and its little friend the Bigwords.com app [iTunes Link] are welcome additions to the quest of buying books and still having enough left over for food.
The Bigwords.com app tries to find the cheapest way to buy textbooks. Whether it's one book, or a long reading list, you will save money using this app. You can also make money by using it to sell unwanted books, but being a teacher, I have a problem with that, having never re-sold or thrown away a textbook. Of course,that's just me.
A good way to explain Bigwords is to take you through the process. The Bigwords.com app lets you set a bunch of preferences, each one reducing your options a bit. You can choose books that are new only, new or used, high quality new or used, set shipping preferences, consider eBooks or rentals (along with rental terms) and whether you require a guaranteed buyback from the vendor.
You further customize it by telling it if you are a member of B&N.com, Booksamillion, ECampus.com, whether you have used Half.com, and whether you are an Amazon Prime member. Amazon Prime is a service where for a yearly fee, most everything you buy comes with free 2nd-day shipping. The answers to all of these questions help determine your final price.