• Everything is not equally important. Rather than doing a lot of different, unrelated things, choose to do the right things sequentially. It is just like a domino effect: one thing starts the ball rolling down a hill, and as the ball gets the momentum, it needs to grow larger.
• Think big, aim for the moon. Getting there is achievable when you focus on “The ONE thing” and allow a domino effect to come into play. Extraordinary things are always built over time.
• Think big but focus small. Work on fewer things that have more impact. Your ability to focus on your One Thing each day is what leads to big results.
• To prioritize radically, keep asking the Focusing Question: “What’s the ONE thing I can do such that by doing it, everything else will be easier?” 
• Multitasking is a myth—our brains can only focus on one thing at a time. What we call “multitasking” is in effect “task-switching,” during which our brains move constantly from one task to another. By doing this, we experience lost energy, and thus lost productivity and effectiveness.
• Our willpower is limited. When our willpower runs out, we usually revert to our default settings and what's most comfortable. Therefore, conserve your energy and do your most important stuff first while your willpower is at its highest level. 
• Many successful people become successful by simply focusing on ONE passion or skill. Likewise, most successful companies start by focusing on ONE main product or service (e.g. Starbucks, Google).
• Striving to always live a balanced life, where all areas of your life get the same attention, can keep you from extraordinary results. Instead, focus on your most important calling and allow some areas to remain unaddressed, at least temporarily.
• Holding yourself accountable for the results you get in life is taking your power back. Avoid victimhood.

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The above is inspired from the bestselling book "The One Thing" by Gary Keller.

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