Plaintext Productivity isn’t so much a productivity system as it is a set of habits and suggested software tools to help manage the tasks, plans, priorities, and so on, of your work life. You can use it in to implement, on your work computer (assumed to run Windows and be semi-locked down) whatever productivity system you adhere to, whether it is Getting Things Done, Franklin Covey, AutoFocus, or something you’ve developed on your own.

Source: Introduction - Plaintext Productivity

Some interesting ideas, but I think everyone has slightly different preferences and needs. Some of this will be relevant and some won’t