I've always appreciated businesses with a sense of humor. I love the fact that some companies realize the importance of being approachable. Make your customer smile or laugh and you're halfway to a sale.
This doesn't exactly apply, since the iPhone app "Words With Friends" is free, but it's still good. This is a clip from their how-to guide:
What else do you need to know? You can play from your toilet seat? Bring it on, world!
And "baazing!"? LOL. That's a new one for me. I love it.