Paul James, global brand leader at St. Regis Hotels and Resorts, estimates that he spends no less than 150 nights a year in hotel rooms. His experience goes well beyond his own company's brand; he often checks out the competition by staying at other hotels. Over time, Mr. James has developed a number of tricks to make sure his hotel stays are comfortable. For instance, after booking a room online, he immediately follows up with a phone call to the hotel's concierge. His aim: to request a room that will suit him.

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