I have my screensaver as the alternating iTunes album covers. When my MBP goes into the screensaver mode, I have to tap something other than the track pad or space bar. This would normally be fine on most days, but I live with others and I am only respecting the need to rest or whatever. Having the volume on the lowest volume may not be the best because if I accidentally turned it on and didn't know it, it may just run my battery out of charge. Thank you.