Outer envelope
An addressed and stamped envelope.
Inner (sealed) envelope
An unsealed envelope that holds the invitation. Appropriate for very formal events.
Reception card
An insert that lists the reception time and location; appropriate when the ceremony and reception are at separate venues.
Rain card
Notes an alternate venue in case of inclement weather. Appropriate for outdoor ceremonies.
Response set
A small card and stamped envelope (or a stamped postcard) that guests fill out and mail back to RSVP.
Map
An insert with detailed directions to all wedding-related venues.
Parking-arrangement card
Informs guests that parking has been arranged in a nearby garage. Also serves as an admission pass if parking fees have been prepaid.
Special-transportation card
Informs guests of shuttle service to faraway or off-the-beaten-path sites.
Hotel information
An insert that notes the address, price range, and phone number for hotels with rooms for guests.
Within-the-ribbon card
Identifies VIP guests such as grandparents to ushers.
