Rob Gronkowski is retiring from the NFL with his entire career earnings: $54 million, according to Spotrac. He was able to save this nest egg by following a simple money rule: keep it simple by saving surplus money. Gronkowski previously told Business Insider he lived off only his endorsement earnings. Gronkowski is in good company — some of the world's wealthiest people, like Warren Buffett and Mark Zuckerberg, are known for having frugal spending habits.
Rob Gronkowski is retiring from the NFL with his entire career earnings: $54 million, according to Spotrac. He was able to save this nest egg by following a simple money rule: keep it simple by saving surplus money. Gronkowski previously told Business Insider he lived off only his endorsement earnings. Gronkowski is in good company — some of the world's wealthiest people, like Warren Buffett and Mark Zuckerberg, are known for having frugal spending habits.