Mark Cuban’s Top 50 Rules for Success. Need motivation? Watch a Top Ten with #BelieveNation! Grab a snack and chew on today’s lessons from a man who went from growing up in a working-class family, selling garbage bags door to door, to starting his own business while working as a bartender and becoming a billionaire and owner of NBA’s Dallas Mavericks. He’s Mark Cuban and here’s my take on his Top 50 Rules for Success!