Oh there are some real beauties in here - my personal favourite being #9 - Installing Software with the Default Settings. Microsoft can't exactly claim innocence here as some of our default settings in the past have been woeful but things changed a lot with the Trustworthy Computing Initiative and notably in products like Windows Server. We're not alone though - install some other well know free apps from the web and you get all manner of changes to your system. A couple of media applications spring to mind :)

The list is a good one though and some of the images are probably worth printing out and perhaps using in your internal IT mags or blogs even....assuming eWeek doesn't mind.

I'll add my own to the list though

#11 - Talk technology speak to business people and continue to propagate the myth that all IT people are just geeks who talk a different language and add no value (just cost) to the business.

<steps off hobby horse> 

Link to Peter Coffee's Top 10 Stupid Things that Smart IT Pros Still Do