Example: You have a reading goal and would like to track your progress on a reading list. You can use the bar code field to scan the book's ISBN code instead of manually entering the title each time. How fancy!
Example: You'd like to get a sense of how balanced your goals are by visualizing how they are spread out over the different areas of your life. To accomplish this, you can assign one or more life areas to each goal so you can filter and sort to your heart's content later on.