title: why not using Request.Cookies.Clear() in ASP.NET web forms?
body: <p>I searched here on the stackoverflow about removing all cookies from site, but couldn't find a single answer suggesting the use of  <code>Request.Cookies.Clear()</code> method.</p>
  
  <p>What's the difference between:</p>
  
  <pre><code>if (Request.Cookies["UserSettings"] != null)
  {
      HttpCookie myCookie = new HttpCookie("UserSettings");
      myCookie.Expires = DateTime.Now.AddDays(-1d);
      Response.Cookies.Add(myCookie);
  }
  </code></pre>
  
  <p>and:</p>
  
  <pre><code>Request.Cookies.Clear();
  </code></pre>
  
  <p>Thanks in advance!
  and sorry for my bad language, English is not my native!</p>