Bought an app last week called JotNot - its a scanner. It enables me to digitise documents using my iPhone. You snap an image of the document and process it then with another click a pdf of the image is uploaded to your choice of 'cloud' hard drive.
Magic, I have organised folders to store the documents in Google Docs - the search facility is fab.
May have to keep some originals but the rest will be going in the shredder...
When you add this to the Sat Nav App that cost a fiver i reckon this is the best piece of kit I have ever owned, bar non!!