Launch Option to move entire game window?

[FictiousWill]

I run all source engine games in super widescreen and windowed so I can see incoming aims and playlists and stuff like that. But whenever I start up a game the window is always three pixels too far to the right to allow room for the windows border. I have to carefully drag it over to the right to line it up just so. Surely there's an easier way each time I run the game. Possibly a launch option window_x_coordinate -4 or something?