Long before anyone had ever heard of Miss Manners, Titus Maccius Plautus discerned the truth about hospitality. "No guest is so welcome in a friend's house that he will not become a nuisance after three days," wrote ancient Rome's great playwright. With the holiday-travel season upon us, there are ample opportunities to annoy friends and family with burdensome visits. For that reason, TIME checked in with two experts, Letitia Baldrige and Peter Post--both out with new etiquette books--for advice on how to be a well-mannered houseguest.
The truth about most of us is that we carefully plan our holiday entertaining...