Through 8/12, get a $5 B&N Gift Card for each eligible digital magazine subscription you order at Barnes & Noble. In addition to working on a Nook tablet, the NOOK app can be used to read these magazines on the iPad, iPhone, Android devices, Macs, and PCs. Available subscriptions include Cosmopolitan, HGTV Magazine, and Esquire. There is no limit to how many gift cards you can earn, but you must keep each subscription for at least 2 payment cycles before you will receive the cards. Since the subscriptions run $1.99 per month, you will still come out $1 richer after the 2 months are up (assuming you use the gift cards).