MediaFire

This seems to be a handy site for file sharing and it's free.

Pls be reminded that it's not for backup purpose though.

Registration is easy. Just need an e-mail address and set your
password. That's it. And once set, you can set up an URL (if you want)
like http://www.mediafire.com/xxxxxxxx

Have a try, and use at your own risk.
(in theory, you can save stuffs in private mode that others can't read)

http://www.mediafire.com/