IT'S HERE IT'S HERE IT'S HERE! No, not Xmas... the long-awaited 40% off coupon from Borders. It's valid through Dec. 13 and good on almost any one item, so go nuts!
Oh, and I tried out the show-this-coupon-on-your-mobile-device method earlier this week and the cashier confirmed that that works just fine. He also said that you can even "write down the barcode number on a sticky note" and bring that in, though I don't know how his coworkers across the country will feel about that.