To use these Hell Couple posters and prints, simply find a nice spot on your wall and hang them up with a nail or adhesive strips. Make sure the surface is clean and dry before hanging. When it comes to maintenance, keep them away from direct sunlight to prevent fading. You can gently dust them with a soft cloth if they get dirty. Avoid using any harsh chemicals or abrasive materials on them. Also, be careful when handling to avoid tearing or creasing the posters and prints.