Check out this video on how to quickly get your databases into Database Projects. If you're wanting to save a copy of your SQL Server database into a version control system, this is one of the first things you'll need to do.
Database Projects can also help organize your T-SQL code that is used to make database objects. In this video, I show you how to create a database projects that groups T-SQL scripts by schema and then by database object type. No more wondering if that object is a view or table!