Stupid JSON tricks?

I've keep coming back to JSON for a variety of data needs. It's easier to wrangle than XML and seems to have a wider range of real-world applications, especially passing data among JavaScript, PHP and various APIs.

And if you're one of those people interested in MongoDB, you're going to have to learn you some JSON.

So I know some stupid JSON tricks, and maybe you do, too. I'll show you mine if you show me yours.