Las Vegas, Saturday afternoon

“DON’T DO ANYTHING I WOULDN’T DO” are the parting words of our cabdriver as he drops me and two other friends off at the MGM Grand. “Is that a lot or a little?” I ask. The old man pauses, his sun-wrinkled face forming a smile: “It gives you a lot of leeway.” And with that, we enter the city’s largest hotel and casino: The MGM Grand boasts over 3,000 slot machines, more than 145 gaming tables, and a staggering 5,034 guest rooms. If you spent every day in a different room at the MGM, it would take you more than 13 years.