The feature I am going to describe in this post would definitely deserve a better visual representation since almost nobody I've asked doesn't know about it.
Anyway, despite this visual imperfection it's very useful for any developer who deals with pages that contain number of script files.
See the following screen-shots. It shows a list of scripts included in the current page.
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The list of scripts is pretty long (didn't fit in the image) and you even need to scroll the menu content to see its end. Important is the plain Type any key to filter list note at the top!