Staten Island Live has a feature on Disney's all-time greatest innovations. And no, I don't see the connection between Staten Island and Walt Disney, but let's just glide right past that question.
Anyway, it's an interesting article. Several of these innovations have become so commonplace that I had no idea that Disney had invented them. Nor, for that matter, did I even consider them particularly innovative. But then, what's that old chestnut? "Every great idea is obvious in hindsight."