Cool PowerPoint shortcuts

I'm playing catch-up on the PowerPoint team blog. I'm a huge fan of keyboard shortcuts and keyboard-mouse combinations (CTRL+Scroll wheel to zoom in/out, that kind of thing), so this post from way back in December (I've no idea how it dropped off my feed reader for so long) about views shortcuts is right up my street. I've known for a long time that there's similar undocumented goodness in Word, but had only got as far as double-clicking screen elements. (Try double-clicking around the edges of the ruler and see what you get...) I might have to have a play later and see what I can uncover with keyboard modifiers like CTRL and SHIFT.