We start with good intentions re the organisation of digital images but inevitably end up with pictures scattered across folders and directories. Picasa is free software from the Google factory which scans your computer and brings all your images together into one place – retaining the original categories – and displaying them as thumbnails – in date order – you can browse through and delete the ones you no longer need – those you’d forgotten you had – or all the duplicates you didn’t realise you’d made – all lurking and taking up valuable space. Watch out for the check box when you first launch Picasa – if you don’t uncheck it then Google will become your default search engine – that’s sneaky!