Humanity's ability to invent incredible things is what makes us one of the most amazing species. It also makes us one of the laziest. I mean, the fact that we created the KFC Double Down sandwich is a testament to mankind's arrogance, if you ask me. And the snuggie? Terrible.
But then there are the obvious incredible inventions: solar panels. The airplane. The film Pumping Iron, which is a creative endeavor and technically not an invention, but it's definitely changed my life for the better.
And then you have potentially life-saving innovations that are low-cost and are already part of our everyday lives to begin with.