As is usual with me while working with editors, I press a lot of the wrong buttons (whatever that means). Well, sometimes the consequeces are good like what happened to me when I accidentally messed around with the Shift and Ctrl buttons while working with jsfiddle. I just found myself a few keyboard shortcuts. Check em out!
Shift between editor windows
Ctrl + UpArrow, Ctrl + DownArrow
Show/Hide the 'Framework' panel on the left
Ctrl + Shift + UpArrow (Yea, you press the same combination to toggle between show and hide)
Run the code you've just written
Ctrl + Enter
Happy Programming :)