On Wednesday (Aug. 28), Berkshire Hathaway (BRK.A) reached a $1 trillion market capitalization, making it the first non-tech U.S. company to achieve the trillion-dollar status. The milestone is an early birthday gift for the company’s chairman, who turns 94 today (Aug. 30). Despite Berkshire Hathaway’s success, which has made Buffett the world’s sixth wealthiest person with an estimated net worth of $147 billion, the investor famously maintains an extraordinarily frugal lifestyle. He’s lived in the same Omaha...