Email Template Builder Software Resources

One of the opportunities that we are constantly looking for help is around driving more traffic! We realize that every brand faces this issue. One thing specifically that we lack is a good sense of a "Call to Action".

Many of my clients think bigger is better when it comes to their active list size. In what ways can I tell them a healthy list means more, while also satisfying their needs?

I've been clicking the "done editing" button to save my work, but then it takes me out of the email creation. Maybe I'm missing the obvious?