There are two synergistic approaches for increasing...

There are two synergistic approaches for increasing productivity that are inversions of each other: 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.