We have a few guests who don't live with their SOs, and I've read that we should send each SO his/her own invitation at his/her address. Should I also do that if we have never met the SO? Or is it better to send one invitation to the person we know, listing him/her and the SO? Or should we just ask our guests what they would prefer?
I'm just worried about people receiving an invitation from a couple they've never met and being confused/thinking it's a mistake/throwing it out.