Yeah, I can now fix the ethernet in the office I tried to do from memory watching the guy who wired the school! Lots of summer projects coming here. Want to wire the xbox so we can watch netflix on it this summer.
There are inexpensive programs that you can use to do this - it helped us with a personnel matter quite a few years back - I think every IT person should have such a program and every teacher should understand that it is possible for such a program to be used. I teach my students that everything ever saved on a hard drive can be retrieved - be careful.
So, learn to hide your financial files backup after you did your taxes in that old picture of you and Grandma.
OK, now this is very cool - you can hide files inside JPEG pictures. To me, it is not possible to have too many backups - of your tax records, your financial records, etc. Although this method isn't perfect, it would require maximum geekiness to sniff out and find.
How to defeat keyloggers on public computers - this is a fascinating article. To me the best advice is still when on public computers not to log into anything that needs to stay secure, particularly accounts you've used a high security password. If you have to - change the password the next time you log on at home or work - IMMEDIATELY!