DEAR MISS MANNERS: At my partner’s son’s wedding, the first row had names taped on the chairs for assigned seating. For the first row on the groom’s side, the first seat was for the groom’s mother, ...

Not RSVP’ing is one of the biggest wedding etiquette mistakes you can make. Couples base the entire day (and budget!) on their guest count, so it really is unacceptable to turn up without notice, says ...