Step 4: Stapling - Round One: North, South, East, West
One staple each goes at north, south, east and west. Start with the top staple, around the shirt's collar.
Next, do the bottom staple. Pull the bottom of the shirt fairly taught, but not as tight as you can. The point is not to get the shirt drum-tight at this stage.
Next, do the left and the right, putting the staples directly across from each other.
Once you flip over the shirt to look at the design, it will still be baggy, especially around the corners.