After all, even a single invitation can still be expensive, and furthermore, sending an invitation to someone you already know can't attend could be interpreted as a tacky solicitation gifts.
However, if it's a guest you know will appreciate the gesture and will like having your invitation as a memento, you should still formally invite them to be there with you to celebrate.
The exception: You should invite your immediate family members and your wedding party with their significant other or a generic "and guest" no matter what their relationship status is.
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Traditionally, save the dates are mailed four months in advance, with invitations going out around eight weeks before the wedding date.
If you're having a destination wedding, add a little time on the front end: Send save the dates up to six months in advance, and invitations 12 weeks before the event.
Wedding RSVP etiquette for destination dictates starting earlier.
Request your RSVPs back seven weeks before the wedding date.
Once you've gone through the trouble of setting a wedding date, it can be a bummer to find out a friend or family member can't make it.
Traditional wedding invitation etiquette suggests skipping their invitation.
The timing can change depending on the type of wedding you're having.
For a local wedding, with very few guests coming in from out-of-town, set your RSVP date for two weeks before your wedding date, allowing up to six weeks to RSVP.
In this case, it's usually best to make a personal call to the guest and handle the situation gently.
Explain that the wedding is for adults only and let them know you hope they'll still be able to come.
This will give your guests plenty of time to arrange their schedules and shop around for great flight deals.