5. Blend Flash with Ambient
With more static subjects it can be fun to add a blip of flash just to liven up an image. In this composite shot of a sycamore leaf, both images were exposed for natural light; however, the bottom image was given a blip of off-camera fill-in flash and the shutter speed was increased by one stop in order to darken the background.
Sycamore leaf. Nikon D200, Nikon 105mm macro lens. 1/125 (top) & 1/250sec (bottom) @ f/8, ISO 100.