Marie Claire's September issue starring Blake Lively hit newsstands yesterday—all 452 pages of covetable fashion and beauty for fall. But if you haven't had the chance to scoop one up just yet, you can still shop the pages thanks to Keep.com. The shopping app, made popular by bloggers such as the Man Repeller's Leandra Medine and designers like Cynthia Rowley, did all the work for you so that all the shoes, bags, ready-to-wear, and more are just a click away. What are you waiting for? Start shopping!