His advice ranges from the office layout to the right color of staff uniform to changing light bulbs and fixing cracked tables -- particularly if they are located in the southern corner of the office, which signifies fire and passion.

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In other Apple retail stores news, the company filed a patent with the U.S. Patent and Trademark office that covers the planning and layout of an Apple store.

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The 47-year-old has since come to lean on his mentor, 23-year-old Eric Leist, for guidance on everything from the latest smartphone apps to the layout for a new office.

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But before the young staffer can answer, he's in the member's office, switching his focus from his spreadsheet to the size and layout.

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