Tag case sensitivity At the moment use of Tags seems to be case insensitive.
So, for example, it is possible to tag an article as both 'IT Support' and 'it support'.

Is it at all possible to make the Tags case sensitive?
One option is to use the onBeforeSaveTag event to capture the tag before it is saved. You can then use PHP's strtolower to normalize all of your tags.

In a plugin's main file, your init() function should have something like this: 

public function init()
{
    craft()-&gt;on('tags.onBeforeSaveTag', function(Event $event) {
        $event-&gt;params['tag']-&gt;title = strtolower($event-&gt;params['tag']-&gt;title);
    });

}