What would you do with the power of a god?

By which I mean you have the power to mold new lifeforms into reality at your most powerful. Destroy planets and stars, sure. But you can also created planets and stars as well as entire species at any stage (animal, microbe, cavemen, civilization, etc.)

Would you destroy all that is and remake the world in your image? Create a new world from scratch to rival earth and humanity? Or just chill at home, changing the channel with a wink?