| Defining Purpose And Principles | Nonactionable Items | Natural Planning Model | Trusted System | Organizing |
| Mind Like Water | Five Stages Of Workflow | Avoid Hanging Files | Next Physical Action | Weekly Review |
| 20000 Foot | Next Action | GETTING THINGS DONE BINGO (free square) | Tickler File | Brainstorming |
| Action Reminders | Horizontal & Vertical Control | Defining Your Work | 40000 Foot | Reference Filing |
| Runway | Project Thinking | Someday/Maybe | Calendar | Waiting For |
| Tickler File | Weekly Review | Action Reminders | Trusted System | Reference Filing |
| Natural Planning Model | 10000 Foot | Calendar | Someday/Maybe | Runway |
| One Alpha System | Avoid Hanging Files | GETTING THINGS DONE BINGO (free square) | Brainstorming | Horizontal & Vertical Control |
| Action Lists | Open Loops | 20000 Foot | Next Physical Action | Collection Buckets |
| Organizing | Next Action | Identifying Next Actions | Nonactionable Items | Defining Your Work |