The instructions for creating an Amazon EC2 image walk through the use of command line tools which is really great. Learning how to do it this way is important because it helps you understand more about what you're actually doing. But once you understand it all, it can be a headache to have to remember all the commands and options because they're all rather similar. So quickly after learning all about Amazon EC2, my buddy Hiram told me about the Firefox Extension for Amazon EC2.
This Firefox extension is such an incredible time saver for most of the tasks of managing images. Starting and stopping images, grabbing the public DNS name of an image, etc. are as easy as clicking a button. After you've taken the time to understand how to create and work with images from the command line, it is definitely worth using this extension.