Addressing Save the Date Envelopes

STDs can be more informal if you choose. You also don't need to send multiple STDs to the same address. For example, my aunt has two girls at home over 18. The daughters will get their own formal invitations, but for STDs, I sent one to the address for everyone and addressed it to "The Smith Household".

Hi Haley, welcome to WW! Make sure to upload a picture for your avatar (instead of the default icons) so that we can get to know you and tell you apart from all the other posters. You can do this on a desktop computer or a mobile browser (just not on the app) under My Settings and Profile and Privacy Settings.

Save the dates can be as informal or formal as you want! Just make sure you're matching the formality level between the card and the addressing style (don't use very informal titles if you have a super formal save the date and vice versa)

My StDs had informal addressing. StDs are not particularly traditional, so I feel like there aren't a ton of etiquette "rules" to follow. If they're pretty informal (as most StDs are), so I think that you can address them however you'd like!

We are addressing STD and our invitations first and last names, no Mr. or Mrs. anything. Too many people in our lives don't identify or care with a gender honorific, so we're leaving it all off.

Thank you!! Those are all extremely helpful responses. I was leaning on the side that STD's are definitely a newer trend, therefore, likely don't have some traditional expectation attached to them how they "should" be. I appreciate your help