As for the computer off/on/sleep... I always turn mine off. Yes, I know that "sleep" mode save some time (?- I think), but... 1) If I can save a few pennies a year on the electric bill here by turning it off, I will continue to turn it off. I even unplug mine at night too. 2) Computers are more prone to damage from power spikes when in "Sleep" mode than when turned off, so... -At least that's what my brother - who's a computer systems engineer - always tells me. 3) Your computer can't be hacked when it's turned off, and with the "roaming" technology out there to "steal" wireless signals, and, consequently, information, I'm not taking any chances.