InfoWorld published a very good list of general skills that every IT Professional should possess. We bring it to you from the archives of the internet. This article is informative, and overall a good read.
One of the key points is to be able to train someone in the tasks you are able to complete. We fully agree, since computer education is vastly important in the workplace. IT Professionals prefer to teach other workers how to solve their problems instead of having to go to the IT person every time the problem appears. Another useful point on this list is to backup and document everything. It will make your life easier, as well as anyone else who steps in to manage some of your responsibilities.