IT Security Tricks That Work

I am not an IT Security expert - by any stretch. However I am interested/fascinated by it (I even took - and passed - a SANS SEC401 basic security course!), but that's about where it ends in my day-to-day life and work. That said, the article below from InfoWorld really caught my eye. It mentions a lot of things that I once thought were good steps, but since seem to have fallen into disfavor. The article argues that in this day of automated hacker tools and so on, "security by obscurity" and other tricks can really help cause the bad guys move on to the next target.