Other than the RSVP card, of course! These are the extras you might want to add inside your envelopes...
#1 A map!
If you're holding your wedding at an off-the-beaten-track location, or will need to direct guests from your ceremony location to your reception destination, a map can make a sensible addition to your invites. If you can, ask your stationer to create something - but if you're not bothered, simply provide photocopies or print-outs from the A To Z.
YOU MIGHT ALSO LIKE: The wedding stationery timeline
#2 Your gift-list details
Your provider will probably give you insert cards you can include - but if you're asking for something else (for example, cash towards your honeymoon), include a note or poem so guests know what's what. If you'd rather gifts went towards charity, some gift-list providers (such as Prezola) can make this easy for you, too.
#3 A playlist request
For an extra personal touch at your reception, ask your guests to provide the guest-list! Enclose a sheet asking guests to provide the names of three songs that will make them get on the dancefloor, in order to guarantee you create a wedding playlist that pleases everyone.
YOU MIGHT ALSO LIKE: 50 ideas for your first dance song
#4 A hint at the theme
For example: if you're planning a lavender-infused celebration, include a sprig of the herb inside the envelope. It's not essential, of course, but it can add a neat twist of personality to your plans!