A simple helper function that clears the cache for a given URL, assuming no headers. Probably best used when wired up to a model's post_save event via signals. See [message to django-users mailing list](http://groups.google.com/group/django-users/msg/b077ec2e97697601) for background.
Wraps specified URL patterns with login_required decorator. Allows you to quickly require login for an area of your site based only on a URL pattern. Similar to [zbyte64's snippet](http://www.djangosnippets.org/snippets/966/)
Wraps specified URL patterns with permission_required decorator. Allows you to quickly require a specific permission for an area of your site based only on a URL pattern. Assumes a passing knowledge of how Django permissions work and how to use them. See [User authentication in Django](http://docs.djangoproject.com/en/dev/topics/auth/#permissions) for more information.