I now carry a tiny infrared thermal camera with me everywhere I go, and I've decided to make it my contribution to humanity. I got so tired of washing dishes and being nice- this will be much easier, as contributions go!
I literally am such a nerd about this that I point it at trees, the floor, anything that might be awesome.
Infrared is not an X-ray, you can't really see through anything, but you can see temperature changes behind objects, which is also technically a superpower.
People look pretty cool under infrared, as long as you don't look at their faces, which look terrifying.
What I mainly use my infrared camera for, though, is buildings. You can't hide anything in construction anymore, thanks to tools like this.
The camera I got is called the Flir ONE, and it mates with my iPhone 5 to make my pocket bulge with infrared awesomeness! For $250, I recommend it to anyone who likes having an easy superpower.