It used to be no more complex than saving a Word document. You used to get a small storage space from your ISP with FTP credentials to upload files. Security was not an issue and neither was traffic. User input was a more advanced matter, but when you've reached the level to having concern for any of these, either your ISP would help you or you'd contract a professional web host. Today it's an immense task for amateurs to just get off the ground.