Hey folks, I ordered the MBP with Retina a few days ago and am in need of a bit of a primer as this is my first Mac. I'm not concerned about actual operation as I have Mac experience and am tech savvy, but I have two main questions: 1) How should I handle charging? I have a six-year-old Dell that I keep plugged in at all times. What is the best way to handle charging in order to preserve the length of the battery's life? 2) Shut down. I generally shut down my Dell every night. Should I not do this with the MBP? I mostly shut it down because it's loud (and kept in my bedroom). I'm sure this won't be an issue with the MBP, but I'm still wondering if there's any reason that I shouldn't shut it down every night. Thanks!