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.
Planning and Sending – Once you know all of the basic details about your wedding plans, place your order with your stationer. As with invitations, having these cards printed can take up to several weeks, so give your stationer plenty of time. You can mail these cards out up to six months before the wedding date. Save-the-date cards can be designed to match the rest of your wedding stationery and ordered at the same time, or they can have a completely different look.
Rules & Etiquette – Again, few rules apply. The only information you must include is your names and wedding date, although I suggest including location information as well so wedding guests can begin their travel plans. Aim to send save-the-date cards soon after you secure your date and venue, or about 4-6 months prior to your wedding. Remember, everyone who receives a save-the-date also receives an invitation, so have your guest list finalized prior to sending them. You can, however, always add guests later (there is no rule that says everyone must receive a save-the-date card). Although formal replies are not required, you can get preliminary attendance estimates through word-of-mouth.
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.
Do include photos that are relevant to your wedding; and use colors that relate to your wedding. For example, if your wedding venue is to be decorated with white and pink decorations, then use the same color theme for your cards as well.