Some more shortcuts I've learned:
ALT+F12 - Open the "Object Search" window
CTRL-ALT-X - Open the Toolbox window
CTRL-Up/Down - With the toolbox window open, Navigate between the different Toolbox panes (Useful for moving to the Multiple Copy/Paste - memories!)
And of course, In any active dockable pane - ESC brings you back to the code window..