Assuming there is some value in tracking my extra hours worked, what is the best way to present it?

I've been meaning to keep better track of how I spend my extra time at work. I'd like to find out where most of my time is going, and if I can use it more efficiently (I'm assuming the answer that question is yes). I think tracking your time is a good exercise for any teacher, and I think it would be fantastic to see a whole school do it. Any qualitative researchers out there need a project?

I'm using TimeClock app from Spotlight Six for recording and iChart for publishing. There may be better options for both, and I have a lot to learn. I recorded more data than just the when, and I'm wondering how to make that part of the chart as well.