This little extension creates a new global variable which fetches the current last segment in a URL and registers it as a global variable.
The addition of a {last_segment} variable can be extremely useful for a number of reasons. The main benefit is that it allows you to create the appearance of sub-templates and hierarchical page structures. For example, you could have a 'pages' weblog and by setting the url_title parameter of the weblog:entries tag to {last_segment}, create a structure of:
/head/shoulders/knees/toes/.
The extension also sets global variables for the last segment but ignoring pagination in the URL, and a variable for returning the current URL.
For more information please visit: http://www.tomkiss.net/ee/add-on/last_segment