The survey of more than 1,000 American travelers found that 30% don’t tip anyone at a hotel. Of those travelers who do tip, 46% say they tip housekeepers, 40% tip room service attendants, 30% tip the valet, 20% tip the porter and 10% tip the concierge, according to the survey. Although travelers are not obligated to tip any hotel workers, it is proper etiquette to leave a tip for those workers who helped make your visit enjoyable, said Lizzie Post, the great-great-granddaughter of etiquette queen Emily Post and president of the Emily Post Institute. On the other hand, it is acceptable to withhold tips from a valet or the concierge if you didn’t use the valet or didn’t talk to the concierge, said Post, who has written several books on etiquette. Get the full story at the Los Angeles Times