Puzzling

When I was a little girl I found a puzzle made out of a wire hanger which had been shaped into two joined hearts.  I’ve loved any type of mechanical or wire puzzle ever since. There is something quite satisfying in having discovered the simple little trick at the heart of these types of puzzles.
I figured that one out quickly however the most famous mechanical puzzle of all has always left me stymied.  More than 20 years after having seen one for the first time I finally got the trick.  
Now to see if I can do it again.