Browsing the other night I saw a couple of site that could be of interest.
Wave accounting is a free online accounting tool for small businesses. It seemed like it would be a good option for freelance work. It also integrates personal accounting into the features – something that would be even more helpful for freelance work. I do very little freelancing & use Mint for personal finance – but this tool would be something I would look for if I needed to do more invoicing or tracking for business reasons.
Also, I think I have mentioned that I have been using drop box and like it for sharing files between devices and with other people. Sugar Sync also offers that service and has a 5 free GB account (Drop box starts lower but allows you to earn more space). And of course there are a few others too: Google Drive, iCloud (though really just for apple devices) Box, Carbonite and Mozy, and Miscrosoft’s Skydrive.