cherrytomato 2.0

CherryTomato is a productivity tool that helps you focus and avoid procrastination. It relies on the Pomodoro Technique of concentrating for 25 minutes at a time. CherryTomato shows you a statistics of your application and website usage to remind you what you have been doing.
Though this doesn't sound like a big deal, it has been very helpful for me personally and the technique is gaining popularity rapidly around the world. This article gives a good feel for why the technique works so well.