title: Should the folders in a solution match the namespace?
body: <p>Should the folders in a solution match the namespace?</p>
  
  <p>In one of my teams projects, we have a class library that has many sub-folders in the project.</p>
  
  <p>Project Name and Namespace: <code>MyCompany.Project.Section</code>.</p>
  
  <p>Within this project, there are several folders that match the namespace section:</p>
  
  <ul>
  <li>Folder <code>Vehicles</code> has classes in the <code>MyCompany.Project.Section.Vehicles</code> namespace</li>
  <li>Folder <code>Clothing</code> has classes in the<code>MyCompany.Project.Section.Clothing</code> namespace</li>
  <li>etc.</li>
  </ul>
  
  <p>Inside this same project, is another rogue folder</p>
  
  <ul>
  <li>Folder <code>BusinessObjects</code> has classes in the <code>MyCompany.Project.Section</code> namespace</li>
  </ul>
  
  <p>There are a few cases like this where folders are made for "organizational convenience".</p>
  
  <p>My question is: What's the standard?  In class libraries do the folders usually match the namespace structure or is it a mixed bag?</p>