Josh D, you mentioned what gear you have, so put this technique aside for another day if you don't have this gear.

This technique is excellent for shooting a limited depth of field of just a few inches which result in a definitive bokeh, when shooting head and shoulder portraits.

An extension tube placed between the camera and a telephoto lens (on a 150mm lens for example) when shooting portraits will shorten the depth of field to just a few inches and still allow usable shutter speed aperture combinations, in bright daylight. Combinations like1/125 sec at f11.0 in daylight, will still give a definitive bokeh.

Warren.