If you're using Joomla!, there is a 90% chance that you leave the 'Module Class Suffix' in modules and 'Page Class Suffix' in menu link to articles blank. Either due to ignorance of how this feature can be leveraged, or to avoid the extra effort involved in editing the CSS file, or due to lack of sufficient CSS knowledge. Easy Class Suffixes does just that - allows you to easily generate a CSS class (without any CSS knowledge) that can be added as a class suffix without editing the template CSS file each time. Easy Class Suffixes is a Joomla! 1.5 commercial component, and can be downloaded from here.