The question came at check-in: Did I want to forgo housekeeping for the two days I was staying at the Flamingo in Las Vegas in exchange for a $10 a day food and beverage credit? Huh? The clerk repeated himself. Some guests, he said, didn’t want to be bothered during their stay. So the Flamingo, along with nearly all of its sister properties in Las Vegas (it is owned and operated by Caesars Entertainment), decided ...