Tip #15:
Try a halftone CMYK stencil
Sometimes you just want to reproduce as many colors and details of an image as you can. But who wants to cut and paint 20 layers just to get 20 shades in the final image? With a CMYK color-separated stencil, you use just three colors: Cyan, Magenta and Yellow; plus black, to reproduce the full gamut of color.