I had tried Dropbox to test the cloud storage facility which is for free. I was given 2 GB of storage that I can use to upload my files. What's good in cloud storage is if you are using more than one computer. Your files in Dropbox are automatically synchronized. After updating your files on cloud at home then you can access the same version when you reach the office. There are other cloud storage like Google Drive which provides a bigger space. Are you using cloud storage?
I use Google Drive for Documents but I store my bigger files in a private Google Cloud Storage Bucket. I can retrieve them in any program with the Google Cloud APIs. It's pretty awesome and cheap too ($0.03/GB/Month) 😀