By many estimates, the world’s super-rich make up 0,000029 of the population, yet spend US$230 billion annually on watches, jewelry, cars, fashion, accessories, private jets, yachts, and travel, accounting for about 20 percent of total turnover, according to Wealth-X. But how do you find them? And once you find them, how do you close the sale? And how do you keep them coming back for more?