One more mental model that is useful in decision-making and problem-solving is the Eisenhower Matrix.

It is a simple, but powerful tool that helps you to prioritize tasks based on their importance and urgency. The matrix is made up of four quadrants, each with a different level of importance and urgency.

Eisenhower Matrix

• Quadrant 1: High Importance and High Urgency. Tasks in this quadrant are important and urgent. They should be done immediately.
• Quadrant 2: High Importance and Low Urgency. Tasks in this quadrant are important, but not urgent. They should be planned and scheduled.
• Quadrant 3: Low Importance and High Urgency. Tasks in this quadrant are urgent but not important. They should be delegated or outsourced.
• Quadrant 4: Low Importance and Low Urgency. Tasks in this quadrant are neither important nor urgent. They should be eliminated or avoided.

This mental model is useful for managing time effectively and ensuring that important tasks are not neglected, while also avoiding wasting time on tasks that are unimportant or urgent.

It is also can be used for the personal, team, and organizational levels, giving a clear picture of what needs attention, what can be scheduled, and what can be put aside or delegated.