If you have a Dropbox account you can easily get 4.5 GB of extra storage. You just have to test the auto photo import feature. The first import gives you 500MB of extra space, each successive 500MB you upload will give you additional 500MB.
The importer allows you to upload your pictures automatically to Dropbox when you connect your memory card, or phone or camera to your computer. The tool can be downloaded clicking here.
Not bad! And for free….