Just wondering out of curiosity, why is it okay to write certain things like dress code, adults only, registries etc on a wedding website and by worth of mouth but not on an invitation? Aren't you basically relaying the same message but by different means of communication? Doesn't it still directly come from the bride and groom since they made the website and told people in the first place to tell others? Sometimes etiquette just seems like a round about way of saying the same thing, haha. I still follow it though nontheless.