Not sure if you guys use dropbox, but it is a great FREE service for storing and backing up files, pictures, music, etc. They give you 2GB of free storage and add 250MB for signing up using a referral. Here's a link to a referral to get free storage :
I use this to store work and personal documents. The service is also password protected and very secure. I don't normally promote a service but this is truly free with no strings attached. It has an Android, iPhone, iPad, Mac, and PC client (again, all free).