Re: Auto Updates
Users don't want a window suddenly popping up and interrupting what they were doing. This isn't Windows XP.
Go into Software Sources and set it to "Check for updated automatically" and then they will recieve a notification when updates are found. If they are not confident computer users, though, probably best to set Software Sources to automatically install security updates.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.