Kimai - Open Source Time-Tracking
For those of you who might be a little more geekly inclined....
I was looking for a good tool to keep track of my time I spent studying.
The above is a simple PHP based app that installs easily on a linux/BSD LAMP stack. It's a little overkill, it's intended for things like project timing tracking and the like, but I've found it to be perfect for keeping track of my study time. I setup three different categories, Core Study (for things like watching ATC Videos, reading books like Routing TCP/IP, etc), Labs, and Misc. Study (for things like checking blogs and going more in depth in some subjects through other resources).
This is how I'm keeping myself honest in my studies, as I can see at a glance whether I'm slacking and need to pick it up, or if I'm doing too much and risking burnout and need to take a break.