This is my first mac and I was wondering if it's ok to leave it on all the time plugged in? I usually do this to my PC when I go to bed, just leave it on with it plugged in. Alternatively, do most of you just put it to sleep and leave it plugged in? That's what I see a lot of members here do, but I don't know if you guys still have it plugged to the power supply. Thanks, I know I'm being anal , but it's my first mac .