Life on Mars, Spandau Ballet, the Fiat 500 - it seems consumers of 2009 are bombarded almost daily with retro echoes from twenty and thirty years ago. But how do food retailers concretely tap into this nostalgia for a modern audience? Garnering empirical data for the trend is still at an embryonic stage and will become a crucial tool to maintain the trend once the recession ends. Using updated advertising and harking back to old-fashioned childhood reminisces are also key, but so is new media as Simon Warburton reports.