Interesting safari secret

Here's an interesting little "hack" I found today. You can actually save anything from a web page on safari. I mean anything from images to videos to music. Basically you launch safari then go to window then activity and the browser will show you everything that safari is saving to cache. Just double click on the image or video or mp3 to save it. Here is a screenshot of what you see in "activity" mode

Let me know if you  find it useful...I think it's quite a neat little trick