So if I'm inviting a guest that will be given a +1, do I indicate that on the Save the Date envelope? (e.g., address it to "Jane Doe and Guest") Or do I just address the STDs to "Jane Doe" wait to put the "and guest" bit on the invites?
Assuming I would address the STDs to "Jane Doe and Guest" so Jane Doe can plan (this is a DW), but I wasn't positive...