Inexpensive (FREE) online storage (Score 1)

Streamload offers a free online storage, retrieval and storage service. It takes only a few seconds to sign up for an account and you don't have to pay to store your stuff (they give you unlimited storage with no additional charges), you only pay a nominal charge for the amount of stuff you download back to yourself above 100 MB. Even the subscription plans are cheap (starting at $5 a month). I've used the service for about a year now and it works very well though using just my browser. I would recommend downloading their upload and download manager if you have a windows machine. It makes backing your stuff up much faster.