XCode: The Great Escape (esc)

Wow! Once you know this vital piece of information your whole life will change.

Once you know the magic keystroke all your dreams will come true!

Are you ready? Huh? Are you?

OK...here it comes...you sure you are ready?

The magic keystroke is 'esc'

When in XCode and you click the 'esc' key you get amazing AUTO-COMPLETION.

Use it and enjoy life.

You're welcome.

I may have exaggerated a little bit. :-)