When I decided that I need new business cards I went to the Etsy forums and find a thread where people talked about where they order theirs. I followed all links and suggestions, looked through printing sites and couldn't choose anything by description only. But then I was happy to discover that all of them send free samples of their work!
So now I have a lot of business cards, promotional cards, flyers, stickers and what not to choose from. Still looking through them:) I guess I'll need different kinds of cards for the painted stones and for the jewelry at my shop Artalika.