I am unsure how to address the envelope....My aunt lives with her long term boyfriend and her adult son. I was planning on sending her son (my cousin) a separate invitation but i thought it would be a waste to send two STD to the same household. The problem is i'm having a hard time figuring out how to address the envelope to include all 3 people, or is it proper etiquette to send a separate STD to my cousin separately?
Thanks for you help!