application-start.cs

void Application_Start(object sender, EventArgs e)
{
  MyGlobals.Wish.Value = 1234;
  MyGlobals.Wall.Value = "numb";
}

globals-example.cs

public class MyGlobals
{
  public static SafeValueSeldomWrites<int> Wish = 
    new SafeValueSeldomWrites<int>();
  public static SafeValueSeldomWrites<string> Wall = 
    new SafeValueSeldomWrites<string>();
}

page-load1.cs

public partial class MyPage : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
    // get a value
    int diamond = (int) Application["Wish"];
 
    // set a value
    Application["Wall"] = "numb";
  }
}

page-load2.cs

protected void Page_Load(object sender, EventArgs e)
{
  // get a value
  int diamond = MyGlobals.Wish.Value;
 
  // set a value
  MyGlobals.Wall.Value = "Vera";
}