Have you ever noticed that sometimes pages appear with the wrong modules? For example, your search results may be appearing with all the homepage modules. The Joomla functionality responsible for this is the itemid.
The itemid, along with some other functionality, tells Joomla what modules the requested article or component should load. This usually works great, but when a component or article has no menu item, and therefore no itemid, Joomla assigns a default value of 1.
For almost all sites Itemid=1 is the frontpage, so Joomla loads up all the frontpage modules with your component or article awkwardly squished in, if it shows at all.
This issue can commonly be seen when the user clicks on a link on the front page, the url in the browser address bar changes but the content on the front page does not change.
Joomla 1.7 has simplified much of the Joomla content workflow, making things easier and faster to do. However, one of the things that has gotten slightly more complicated is finding and emptying the trash.
In Joomla 1.5, I'm sure you know that the article trash can be easily managed and emptied by selecting Content > Article Trash from the main menu. In Joomla 1.7, that menu item is gone but the trash feature is still there.
Have you ever needed a simple way to provide your clients or users with a screenshot of all the preference panels in a module, menu, or content item? With this little trick you can quickly and easily provide screenshots for support, user documentation, or personal reference.