Jigdo, if you’re not familiar, takes a current Ubuntu image and compares its contained packages with the packages within an updated image (ie; alpha vs beta, beta vs RC, RC vs final). Using this method you’re only downloading the packages that have *changed* between images and not the entire image again.

I recently went looking for a way to rotate JPG images from within Nautilus, and found a nice way to do this and more. It’s not difficult to customize the right-click popup menu in Nautilus to perform custom actions on files. Here are some instructions and scripts to get you started.