Q: I have a question about wedding etiquette. My best friend is getting married in Mexico next year and her soon-to-be father in law is paying for the wedding party's trip expenses. My husband and I are both in the wedding party so our expenses are covered ($2500 per person!!), my question is...what would be an appropriate way of thanking the groom's father? My husband and I are so appreciative, we want to let him know how thankful we are because we would have really had to struggle to come up with the money to go otherwise.