This is a nice and simple! Usually I keep a logbook separated for each project but it looks more like a diary where I record failed approaches and new tries to

This is a nice and simple! Usually I keep a logbook separated for each project but it looks more like a diary where I record failed approaches and new tries to solve a problem. For more structured documentation, I keep separated text files for each solution that I can easily find if I need it later. EDIT: Also, scratching your plan with pencil and paper before implementing it helps a lot.