Michele, you and John seem to have made a strong commitment to the mailing strategy. For the past few weeks I've been in the process of trying to design a double sided card for myself. Coincidentally, I chose Modern Post Card
http://www.modernpostcard.com/ to help me. I have really been amazed with their level of support and thoroughness.
In my design strategy(?) I have concluded that I would show more painting images rather than just one or two. The card that I am contemplating is big (anything worth doing is worth over doing, my usual strategy), when folded it is 6" x 11" full color on one side and black and white on the other. Another thing that I discovered is that each time you add an image you increase the cost, but if you combine images as I have done below you can save money. The image below is considered one image.
What strategy have you employed as far as size of card and number of images.
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