Nicer strongly-typed way to get a value from a web.config or app.config file. Sourced from http://byatool.com/uncategorized/configurationmanager-and-appsettings-a-wrapper-class-story/

ExtensionMethod.cs

protected static T? GetValueFromConfiguration<T>(String key) where T : struct
    {
      T? returnValue = null;
      if (System.Configuration.ConfigurationManager.AppSettings[key] != null)
      {
        returnValue = System.Configuration.ConfigurationManager.AppSettings[key]
                           .ConvertTo<T>(); //MY AWSOME CONVERTTO METHOD!!11
      }

      return returnValue;
    }

Implementation.cs

  public static DateTime? TestDate
    {
       get
       {
          return GetValueFromConfiguration<DateTime>("TestDate");
        }
      }