Things 3

Getting Things Done principle stating that if an action takes less than two minutes, do it immediately rather than defer it. Based on the efficiency cutoff where organizing a task takes longer than completing it.

GTD productivity principle by David Allen stating that any task taking less than two minutes should be completed immediately rather than added to a task list.

WorkFlowy's adaptation of the Getting Things Done methodology, leveraging its flexible outline structure and rapid capture capabilities to implement GTD categories, allowing users to dump thoughts into an Inbox and organize them using tags into GTD-standard categories.

A comprehensive all-in-one productivity app available across iOS, Mac, Android, and web browsers that unifies tasks, calendar events, projects, contacts, and notes in a single platform with support for GTD methodology, advanced views, and multi-platform cloud synchronization.

A modern productivity workflow created by Amir Salihefendić, founder of Doist, described as simplified GTD built for the modern world. Breaks tasks into actionable steps completable in an hour or less, prioritizes high-impact work, and aims for daily to-do list zero.

GTD-focused task manager with clean interface and comprehensive Getting Things Done implementation. Provides projects, contexts, areas, and reference material organization in dedicated GTD workflow.