Perhaps it was his Yankee entrepreneurial spirit, or perhaps monomania, but Tudor was obsessed with the idea that ice would make him rich. During the next decade, he developed clever new techniques to convince people that they actually needed ice, including a "first one's free" pitch. While living in a South Carolina boarding house in 1819, Tudor made a habit of bringing a cooler of chilled beverages to the dinner table. His fellow boarders always scoffed at the sight, but after a sip or two, they'd inevitably fall in love with his ice. Tudor traveled around the country and convinced barkeeps to offer chilled drinks at the same price as regular drinks--to see which would become more popular. He also taught restaurants how to make ice cream, and reached out to doctors and hospitals to convince them that ice was the perfect way to cool feverish patients. The truth is that people never knew they needed ice until Tudor made them try it. Once they did, they couldn't live without it.