A few years ago, I published the mySelfQuantifier time tracking system. This system is distinctive in that it is based on cognitive science. It involves a free spreadsheet and documentation. It is meant to be used in combination with time tracking software like Daniel Alm’s Timing app.
Now that we at CogSci Apps have published the Hook productivity app for macOS, it is possible for you to quickly reference and access specific documents on which you’ve been working.
Hook quickly gives you links to documents that you’ve been reading or writing. (This includes links to emails and other types of information.) You can then paste them into your time tracking notes (or cells in a spreadsheet).
This makes for more meaningful progress reports, time sheets and invoices to clients.
I’ve written about this on the Hook productivity blog.