Take your work log with screen capture.
$ git clone git@github.com:muniere/caplog.git
# install
$ rake install
# uninstall
$ rake uninstall
# status
$ rake statusAfter installation, the program caplog takes and saves screen shot of your displays into directory
~/Pictures/Caplog every 10 minutes (by launchd of Mac OS X).
You can review your work log of the day with those screen shots.