Tesseract Me, Baby

If you look really closely at the end of the movie you'll realize that Asgard entrusted the tesseract to me.

Essentially infinite energy!

I could drop a whole herd of pregnant elephants on your house quicker than your Mini Cooper gets away from a stop light, and it wouldn't cost me a plastic penny.

It does attract the odd alien invasion but that's what the Avengers are for.