So, I finally sent out our save-the-dates, and even though I had probably re-designed them at least 6 times, I'm pretty happy with how they turned out.  I designed the postcards in Adobe Illustrator and and kept them nice and simple by using one of our engagement photos as the main focus with the necessary information written below.  We had them printed through Vista Print and overall they only cost me around $38 plus an extra $17 or so for postage.  I love getting all the picture texts from my friends and family showing me that they have received them, September 15th will be here before we know it!