Worst First Principle (Eat That Frog)

Task prioritization technique from Brian Tracy's Eat That Frog system that categorizes tasks into five levels—A (must do), B (should do), C (nice to do), D (delegate), and E (eliminate)—to focus energy on highest-impact activities.

Time management principle stating that 80% of results come from 20% of efforts. Guides focus toward high-impact activities by identifying which tasks, projects, or activities generate disproportionate value relative to time invested.

Core principle from The ONE Thing book: 'What's the ONE Thing I can do such that by doing it everything else will be easier or unnecessary?' This question helps identify the single most impactful action in any area, creating sequential success through focused effort.

Time management principle stating that 10% of activities produce 90% of outcomes. This rule, also known as the Pareto Principle applied to time, encourages identifying and prioritizing high-impact tasks while eliminating or delegating low-value work.

Productivity principle from Brian Tracy stating that the first 10% of time spent planning and organizing work will save 90% of the time in execution, emphasizing the importance of preparation over rushing into tasks.

Author who coined the Pickle Jar Theory in 2002, using the metaphor of fitting rocks, pebbles, sand, and water into a jar to illustrate the importance of prioritizing critical tasks before filling time with less important activities.