The art of setting limits - Setting limits simplifies things, improves focus, increases the effectiveness of efforts and helps us in achieving our goals. [do you really need it or do you just want it] Eliminate the non-essential things [Repeat above steps from time to time] Principle 3: Simplify - Eliminate the nonessential Simple focus - focus on one task to improve productivity. Principle 4: Focus is the most important tool in becoming more effective There are many aspects to focus - one should focus on a particular goal.