For the Advanced!
Save this image to your desktop. Open in PS document that is 11 inches wide and 8.5" high.
Adjust the box template to fit your canvas.
Add images, graphics, type to the template.
Print sample on B&W computer.
When happy with design, print on color.
Use scissors to cut out box template.
Fold on dotted lines and tape edge to keep box shape.
Presto!