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.
Although wedding save-the-date cards are not part of the etiquette for a wedding, it is wise to make use of them. It allows your guests to be able to set aside time for your wedding in advance. Generally, people would like to know about your wedding as soon as they can, especially if they are keen to attend. Also, if travel arrangements need to be made, then it is best to be informed early.
You may also consider doing customized printing on objects that will grab attention. For example, a pinwheel or a fan.
Save the date cards can take the form of any message medium, and often do. They sometimes correspond in style to the wedding invitations, or they take the form of refrigerator magnets, brochures, postcards, booklets, or tri-fold letters. The medium is up to you, but the shortness of the message usually lends itself well to magnets or small cards.
Photo strips are the ’in’ thing nowadays. Instead of just having one photo on your save-the-date cards for weddings, it is trendy to include a few photos that capture your personality as a couple.