1. Own a cat. Ever since my encounter with with Cliffords' cat that wouldn't leave me and my truck alone, I've had a preference for cats. If I were to get a pet, it would be a cat. A fuzzy cat. And I'd give it a badass name to reflect its badass personality. I'd name it something like "Yggdrasil" or "Captain Falcon."
2. Learn to play violin. The violin is just so awesome. I love classical music, especially string quartets, so I guess I'd be willing to learn to play cello or something, too. But yeah. Violin is awesome.