This made me chuckle...I do have old papers that I wrote in college (and with degrees in English and communication, that's a lot of papers), and lots of books from my literature classes. I have a few classic books from communication as well (On Writing Well, The Elements of Style, etc.). I think I sold most of my other course books though after the class was over. I really never felt that I'd have to look up something on the geography of Africa and have nowhere else to turn but my textbook ;-)
Right after graduation my living situation was chaotic and I moved 4 times in 3 weeks, lugging my boxes from place to place. I had a giant fight with a guy I was dating and he ended up throwing out some of my boxes out of spite so I lost a lot of my possessions but remember almost crying with relief that I hadn't lost my printed papers...like my essay on Wordsworth vs. Coleridge was going to help me at some point. Funny what we value, eh?
Anyway...at this point I would probably cut the binding off the books, put the pages in the recycling bin and toss the covers.