Parent pages links
C. Bavota, a good Wordpress expert and themes designer (he is also the author of this blog’s actual theme) published on his bavotasan blog an interesting tutorial titled “How to Remove the Links to Parent Pages in the WordPress Page List“.
The article is a good explanation of how to organize the appearance of pages and subpages when single pages are empty and/or built with the only intent of structured organization.
C. Bavota created a short php function, called removeParentLinks(), which you just have to add to the functions.php file of the used theme: this function is useful to betterly show the pages structure, and is great for blogs which make a large use of pages.
Unfortunately, this only works for page lists that are three levels deep or less.