F.Y.I., for Dropbox, phones are not required. If you have or work on more than one computer you can use it. Even on public use computers you can use the Dropbox web page to access your files.
It's even great if you have just one computer. Any important files you put into your Dropbox will be there if something bad happens to your computer. Stolen computer, hard drive failure, accidentally delete something, etc., no problem if it was in your Dropbox. And at no cost. I highly recommend it to everyone. :) It is a very robust cloud storage service.
I tried carbonite (yes I have problems with their politics) and they have a mobile app. It automatically saves photos to your PC, as well as the cloud. Plus it gives you the ability to remote wipe your phone.
That’s dynamite. Sounds too good to be true. I really need to backup my files too.