Hi all! So we just received our first wedding card in the mail yesterday! It is from people that are not able to attend our wedding. I was just wondering what the correct etiquette for this. I would assume I should open it, set aside any cash (or cash the check and set that money aside), and write a thank you card immediately. However, my dad says that I should wait to send the thank you until after the wedding, when I write my other ones and my fmil thinks that all of our cards should not be opened and they should be brought with to the wedding and placed with the other cards. So I am just wondering what is common way to do this? Sorry if this is a dumb question!