Quote from Tim Ferriss's book; The 4 hour work week "1.) Limit tasks to the important to shorten work time. (80/20) 2.) Shorten work time to limit tasks to the important. (Parkinson's Law). The best solution is to use both together: Identify the few critical tasks that contribute most to income and schedule them with very short and clear deadlines."
Parkinson's Law: "The complexity of a task expands to fit the time allotted." We use this law to our advantage and schedule our work appropriately. Click Image to Read Article "How to Use Parkinson’s Law to Your Advantage"