Great little hack for tracking time

I've been a long time reader of lifehacker.com. I download the occasional "daily download", use the todo.txt file, and have implemented several other tricks. But this one, the worklog.txt file, created and maintained by a simple script file and opened with CTL+ALT+L (for Windows OS), made this little hack my all time favorite. Why? The simplicity. I am at my PC a good amount of the day, and I am doing various tasks for various clients. This is going to be a great way for me to quickly start and stop tasks. Thanks Gina.