I came across this article in my local paper the other day about digital textbooks. Two of my textbooks for this fall were available online and both were cheaper than buying them even used and since you make next to nothing selling them back, it still saves money. It's also better for the environment, since you don't have the costs of printing, shipping, etc. You only get them for 180 days, so don't order them until right before school starts. It's geared towards Ohio students, so if you're outside the state, you may not find your books on here, but you never know. Here's the website.
Hope this helps you all. I know it's hard to make ends meet with tuition, books, supplies, and taking care of your family.
Mandy, )O( Proud mommy of Taylor (1/6/05) and Abigail (4/21/11) Loving wife of my gamer boy Michael. Blog link in my profile!