Void Functions

You can hook methods with outside methods...

private static void WriteFile(string data)
        {
            string path = System.IO.Directory.GetCurrentDirectory() + "\\log.txt";
            System.IO.File.WriteAllText(path,data);
        }

and call it in method

 using (var wc = new System.Net.WebClient())
                {
                    string contents = wc.DownloadString("some-site-with-data.com/file.txt");
                    WriteFile(contents);
                }