In my experience scripts are far more readily useable when they are available in the menu just like any other command. So far such luxury depends on the writer of the script.
Now every user of InDesign CS4 (or later) can decide for him- or herself if and which script should be linked into which menu.
When you deliver an InDesign document including images it is not always apparent if the images will be found automatically on the receiving end or not. Bob Bringhurst explains the rules of the search algorithm.
The Script on http://www.indesign-faq.de/en/images_by_contextmenu is rather useful to create freely designed contact sheets. With enough images to fill more than one page it is not quite up to the task. That‘s what fillGraphicFramesByLayer is for.
Sometimes after you finish an elaborate search you might want to get back to the page you started the search. But how to get there?