If you'd like to try 15 GB of free 'Cloud' storage, you might take a look at Google Drive. Here is a guide that will be helpful. Personally, I have not used Google Drive yet, but plan to look into it. I do use and appreciate the convenience of Dropbox, which I use a lot. Maybe, for me, Google Drive could be a backup to Dropbox. For any 'Cloud' storage there's always the potential risk the vendor will change their mind and drop the service, or the contents hacked. I never store any sensitive data in the 'Cloud', and keep a full backup of my computer's storage drive to an external drive. A belt and suspender is what I prefer.

Jim Hamm