Capture, Then Clarify

GTD runs on five steps. The first two do the heavy lifting:

1. Capture — Dump everything that has your attention into one inbox. Every task, idea, worry, and promise. One tool only — a notebook, an app, whatever you'll reach for. The goal is zero mental storage.
2. Clarify — For each item ask one question: "What's the next physical action?" If it takes under 2 minutes, do it now. If it's not actionable, trash it or file it for reference.