1) The document discusses various techniques for getting things done, including capturing all tasks, clarifying which are actionable, and organizing action items into appropriate lists.
2) Key aspects covered are capturing everything that demands attention, determining the next action required, and putting reminders into lists by category to stay on track.
3) Methods for planning work include asking "why" and "what" questions, brainstorming, organizing, identifying next steps, setting aside focused time, and getting the right tools.