If you find a prospect who wants to work with you, but wants to hop on the phone with you to discuss their project (for free), you need to set the stage for the call. You are leading this from beginning to end.
There's lots of ways to blog. And while you could just share images of your pretty designs there's something to be said for writing content rich interior design blog posts. Badass interior design blog post ideas that will get people hot and bothered to comment, share and fall in love with you.