Thanks to everyone for your feedback. I think we'll stick with the traditional postage stamps for the Postcards. From our own experience, we have seen freinds and relatives with our postcards at work and their homes. We get a lot of positive feedback from them about the postcards. I really enjoy writing the post cards on the trains as we travel, or at cafes, or at night in the hotel room. We don't write long stories, but the address labels make it a lot easier to get so many done. It's not so much "We're here and you're not!" but "We're here and you'd like it because..."

Even the next door neighbors kids now send us post cards when they travel because they enjoyed ours.