Mark Cuban is definitely one of America’s most popular billionaires. From being a TV personality on “Shark Tank” to his involvement with an NBA team, this entrepreneur knows his way around a sound financial decision. Learn More: 5 Key Mindset Shifts To Financially Become the Top 1%, According to Humphrey Yang Read Next: 4 Housing Markets That Have Plummeted in Value Over the Past 5 Years So, when a man such as Cuban, who currently has an estimated net worth of about $6 billion, dishes out some advice, you ...