Getting Started with Google Tasks
Google Tasks is already available to any Google account -- open it from the side panel in Gmail or Google Calendar, or use the standalone Tasks app, then create task lists and add tasks with optional due dates and subtasks.
Practical Details
Subtasks support one level of nesting under a parent task, which is enough for a simple checklist but not a substitute for a full project-breakdown structure.
Actionable Considerations
- Open the Tasks panel from Gmail or Calendar's side panel rather than searching for a separate app first
- Create separate task lists by context (personal, a specific project) to keep things organized
- Set due dates on anything you want to see reflected in your Calendar view