My 5 Favorite IDEA Shortcut Key Combinations

Brian was showing David some neat shortcut key combinations in IntelliJ IDEA a moment ago.  I jumped into the conversation and asked Brian: "Close your eyes.  And name five of your most often used IntelliJ IDEA shortcut key combinations."  I didn't write down his answer, but here is my five favorite (not in the sense that I like them the most, but in the sense that when I close my eyes, these are the five that comes to my mind first because I use them regularly:

• Control-n: find class
  
• Control-q: quick Javadoc
• Control-Alt-v: introduce variable
• Shift-F6: rename
• Control-Shift-Space: smart completion

Now that I think about it, I also use Alt-Enter a lot for intentional programming.

What are your favorite IDEA shortcuts?