OK, so I actually know how to turn it off from the Apple logo or power switch. The problem is that it turns itself on if I open the screen or touch a key or the trackpad. Since I am getting ready to replace the trackpad, I want to turn it off so that it will not power back on unless and until I hit the power button, so I am assured that it is off and STAYS off when I open the case up. What is the trick? Why is this so hard?