Grant Cardone, a self-made millionaire and founder of Cardone Capital, shared his financial strategies, including not rushing to diversify investments, using debt for businesses not individuals, investing in cash-flow real estate, buying in bulk, investing in networks, never being content, and not wasting time doing everything yourself. He mentioned Elon Musk's investment of his entire $22 million from selling Zip2 into X.com, and later diversifying after gaining wealth from PayPal's sale to eBay.