Don't over estimate your potential to innovate. It's usually right in front of your eyes. But few people stop to realize how innovative a simple idea can be, and even fewer people accelerate to put the simple idea into action. Innovation requires follow through and lots of it.
The next time you find yourself asking the question "why hasn't somebody thought of this before"? It's likely that they have. But they probably thought past the original idea and never brought it to life. That's your chance to innovate, and I recommend that you take it.