Dropbox - Remote File Saving
I've been using Dropbox (http://db.tt/gxO9xpW) for a while and thought it was good enough to share.
If you haven't heard of it - it's basically a small application that creates a connection to "The Cloud" (a fancy way of saying a remote server) where you can store your images and other valuable files.
They offer 2 GBs free (which is tough to fill up unless you're backing up... then you might want to spring for an actual plan.) and provide ways to increase the your space to up to 10 GB by referring people.
Feel free to post your referral code to this thread if you sign up to help you get more referrals.