It's easy to get distracted
Zero is a FreeAgent client for freelancers and anyone else that sells their time. It simply shows you the few figures that actually matter: how many hours you have done this month and how much money you have earned. By looking at your paid and unpaid hours it shows you how productive you have been by calculating your real hourly rate.
Good visibility of these kinds of key figures is known to improve performance even more than a good breakfast.