We're cutting costs by limiting the number of guests at our reception. In order to accommodate family and closest friends, we have chosen not to allow our guests to bring "a guest." Engaged friends will be invited to bring a fiancé, but we don't want anyone bringing just a date. We are not using inner envelopes with the invitations, however, so it's a bit tricky to decide how to be clear to the intended recipient that he/she is not to bring a guest. Any suggestions on how to handle this? We're thinking just address the invitation to the guest alone (e.g. Ms. Jane Smith) and leave it at that. Is that sufficient, or will she assume she can bring someone with her?