Here's the fine print:
Valid with Borders Rewards membership only. Certain exclusions apply. Coupon cannot be combined with any other offer, including but not limited to “Buy 1, Get 1 Half Price” offers. Excludes previous and online purchases, non-stock special orders, gift cards, newspapers, magazines, comics, coupon books, eBooks, digital downloads, vinyl LPs, self-publishing programs, Smartbox products, Rosetta Stone® software, shipping, and all electronics, including but not limited to the Sony® Reader and the Zune™. May not be combined with other coupons, sale pricing, or corporate, classroom, or other group discounts. Original coupon must be relinquished at time of purchase. Single-use coupon. One coupon per customer during the valid period. Void if copied, transferred, and where prohibited by law. Any other use constitutes fraud. Cash value .01¢. Not redeemable for cash. Valid only in U.S. stores 5/5/09 – 5/10/09.