Hi, I just got my new C2D MBP, my first mac, and first laptop. I have some general questions, so i'm sorry if these seem really stupid. Should i turn this notebook off at nights, or is okay to keep it running 24/7? And should I plug the ac adapter into a surge protector, or will I be okay with just plugging it directly into the wall? I also see that at 40% batter life, i only have 1:15 time remaining... not too good? Appreciate any input!