SMFB -- a sister agency of Forsman & Bodenfors in Norway -- promoted a new line of IKEA sofas by placing them where they ought to be: inside homes. The agency partnered with people listing their homes for sale or rent to put the sofa in real estate ads and home showrooms across the country. The sofa made its appearance in pictures, on maps showing home layouts and the homes, in turn, appeared in IKEA ads for the sofa itself. Win-win.