Ok, so I finally made the leap and switched to Mac! <insert applause here> but don't be thinking I'm just one of the lame-o's jumping on the bandwagon with everyone else the last few months. I've been "getting one soon" for over a year now.... Anyways, so I got the midlevel macbook! I just had a few questions with the battery life or, more specifically, the sleep mode. First of all, what is the average battery life of a macbook? Secondly, I heard that if you leave a laptop plugged in a lot it kills the battery quite quickly. Is this true? Thirdly, what are the pros/cons vs leaving your macbook in sleep mode overnight and turning it off? Fourthly, what is the energy consumption while in sleep mode? Like if constantly plugging in the macbook kills the battery would it be a good idea to unplug my macbook at night and just put it in sleep mode? Or would the battery be nearly drained by the morning? Basically, I'm just looking for tips on how to keep my battery healthy. And also seeing if I ever have to actually turn off my macbook. I guess I care a bit about energy consumption as well... but I'm American so that's last priority overall.