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.
Stop to think for a moment: You have painstakingly put together your wedding event, and done all you could to make this as perfect as you wished; but you take a look around your guests and realized that only half of them were able to make it to your wedding. You obviously missed out your wedding save-the-date cards to ensure your guests kept themselves available on this special day of yours.
If you are creative and want to save money, you can create your own save the date cards using either card stock paper or regular paper. This will save you money since you will be printing them yourself. You can be real creative when you design these. You can include a picture on the paper and include any other personal details you would like.
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.
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.