I used to be the sole person in an "IT department" for a small company (>15 computers). I was constantly bombarded each month with requests for justifying my time billed to the company. I eventually had enough of being looked at as a burden to the company rather than an asset. I began classifying the tasks I was responsible for and how much time I spent on each task over a 6 week period. (Tech support, web design, application development & maintenance, software support, pc repair, etc.) After researching the cost to outsource each of those tasks, I extrapolated that to cover a one year period. The cost of my yearly pay was well under the cost of having someone else come in to do those things. I ended up giving monthy reports on where my time was being allocated, but the overal view towards my position was changed.