Are you using the Pomodoro Technique?
Keep using your notebook or any piece of paper to plan your taks and estimate your pomodoros.
You've gotta admit nothing's better than using a physical & tangible tool when you just want to focus on your work and get things done.
Record your achievements with this tool.
At the end of the day, week or month (whenever you want) log in and record the total number of pomodoros you achieved. It's that simple!
So you can easily see your improvement in gettings things done; be aware of where your time goes; if you are spending disproportionaly more time on things that are not that important; or if you are getting better at estimating effort over time.
“The Pomodoro Technique is a time management method developed by Francesco Cirillo in the late 1980s. The technique uses a timer to break down periods of work into 25-minute intervals called 'pomodoros' (from the Italian word for 'tomato') separated by breaks. Closely related to concepts such as timeboxing and iterative and incremental development used in software design, the method has been adopted in pair programming contexts.
The method is based on the idea that frequent breaks can improve mental agility and seeks to provide an effective response to time as an anxiety-provoking state referred to as temporal 'becoming' ...”
You can learn more about the technique, read the book from the original author and download other resources from its web page: