I am having an adults only ceremony and reception. I have put it on my website and will be very specific on the save the dates & invitations on who is invited (i.e. addressed by name or Mr. and Mrs.). I am concerned that one of my out of town guests may not get the hint since they have a sickly child and understandably don't feel comfortable leaving them home, however I know that I need to be firm with the "no kids" policy because I don't want to offend other guests who will be told the same thing. Is there a way that I can put "Adults Only" in the invitations that way it's very clear when I start getting RSVPs? I don't know if it being on my website and specific addressing of guests will be enough. Thanks!