I was inspired by this and tried creating my own text file, but it seems difficult to be consistent enough in the logging to run statistics on it<p>Also, it would be useful with some syntax for reference to another line and tags. I tried using line number in square bracket for reference, but it's not optimal and requires some manual work and attention. And hashtags can be used to define tags, of course, but it quickly becomes complicated<p>I combined this with Tasker for android and RFID tags as shortcuts when I am at the computer
> If a completely context-free self-tracking app exists, I am not aware of it. Every tracking app seems to apply only to a certain narrow topic - often sport or food.<p>I think you need Toggl.