Am I expendable?

Yesterday at work I decided that my desk was far too cluttered and since I couldn't fit anything into my drawers anymore, I decided to have a good clean. As I was cleaning I was thinking about how, apparently if you're good at your job and organised enough, people should be able to carry on perfectly well without you. I would hope that if something tragic were to happen (or maybe not tragic - perhaps I'll find Mr. Perfect tomorrow and run off to Tibet to get married and live in perfect tranquility forever) I might be missed slightly. Maybe it's better to stick with messy drawers and a piled-up intray. It's a fine balance I suppose...