I'll recommend Active Timer:
http://osiris.laya.com/projects/activetimer/
This tracks the time you spend in each app automatically - you might
be in for a surprise :)
--
Sean A Corfield -- (904) 302-SEAN
Railo Technologies US -- http://getrailo.com/
An Architect's View -- http://corfield.org/
"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood