Moo MiniCards

With more uses than we can possibly list here, Moo MiniCards ($20/100) are the coolest paper-based product since toilet paper... or something. The roughly 1.1 x 2.75-inch cards feature any image you want on one side — from your computer, flickr or one of Moo's designs — and text on the other side, like your name, phone number or a slick message — literally, whatever you want. For more ideas, check out the MiniCards flickr pool.