The New Scientist reports on an unusual way to sift through the ever-growing number of files stored on your PC.

A team led by Stephen Brewster at the University of Glasgow in Scotland, UK, has created software and hardware to let computer users attach distinctive smells - the scent of fresh-cut grass or the whiff of chocolate - to a batch of images. The system, dubbed Olfoto, then lets users sort through their image collection simply by following their noses.