Is there a stopwatch program where you can jot down what you are doing?

Question

I just want a thing that records the time and activity conveniently so I can bill my client

Answer 1

some parental control software can do that I have AntiPorn and it saves records for every action and also taking screen shots every 20 seconds

http://www.tueagles.com/anti-p**n/

but I don't know exactly what you want you may want software to limit Internet usage by data size use NetLimiter

http://www.netlimiter.com/