Typically, I'll go away from the meeting with your ideas fresh in my head, and if you direct me to move forward with the project, I'll create two documents:
1. The sitemap — a document that shows the site's intended architecture. It shows how the site navigation will work, and also where the content will live.
2. The estimate — is exactly what it sounds like. Since nobody likes surprises, the estimate will show a total price to produce a finished project based upon a specific scope. Scope defines what the intended project will and will not accomplish, the dates that different deliverables will take place, and when payments will occur.
After I deliver these to you, we go over them together to make sure we are on the same page. When clients have received the sitemap, they sometimes remember functionalities, or features that we failed to talk about in our initial meeting. This is great because it gives me a chance to amend the document to reflect an updated scope. Once you are excited about what we're talking about, and how it is defined, we'll move on to the next step.