You should send save-the-date cards to all of your intended guests when either of these circumstances fit your situation. Even friends and family members who you already know will attend should be sent a card.
Another well received way is to print a mini calendar page with a 3-hole punch so your friends can attach it to their own calendars. Of course, you would have to circle or decorate the day that belongs to you.
Your save-the-date can take any size or form. If you decide on mailing cards out, then your cards can be the size of a postcard, or even smaller. Make sure the size does not cramp the wordings together.
Although save-the-dates are not absolutely necessary, these cards have increased in popularity with the rise of destination weddings and modern guest lists spread throughout the country. Since they are a relatively modern concept, no real rules apply – a fact which sometimes causes confusion for brides when planning their wedding stationery. I’ve sorted through the information that’s out there to bring you the real ins and outs concerning save-the-dates.
If you are going to use cards and stamps, you might consider creating your own stamp. You can make these stamps online and use your engagement picture. It’s fun and it makes it very personalized.