My college-freshman D asked me last night what to do about her fall-semester Chemistry textbook. It was listed as a required text by the university, so she bought it (online ~$70, not from the bookstore >$100) before the beginning of term. However the class never actually used it -- it's still in the shrink-wrap! I suggested she re-sell it at the start-of-term book swap, to recoup at least part of her investment. She feels it would be dishonest to mislead another student into thinking the book is actually required. I suppose she could ebay it, but she doesn't want to hassle with packaging and shipping.