sorry in advance for the length of this post.  I have been here for less than a week, but I can already appriciate how everyone seems to be for each other, even though there is a certain level of competition. I sell stuff on Amazon, and you wouldn't believe how cut-throat most of the other sellers are. They are terrified that someone is going to find the spots they get their merchandise, and it doesn't help that there are several other sellers in my region.  
I guess what I'm trying to say is I feel more comfortable asking everyone here for marketing ideas. This is my first one. I was thinking about buying a few cards from the site so I have an example of the quality, and then making a portfolio. Since most of my cards are photos, I can use the prints to make up the rest of the portfolio, and put the caption at the bottom. I was going to make and order form, and then scout around to local businesses to see who might be interested in m,y cards, as well as showing it to family and friends. I read one thread where one artist has home selling parties, how do those go? What is your general mark-up? What else do you do to promote locally?