The littlest things can often be the most important. If you are searching for a way to increase the colour and exposure accuracy of your photos, Datacolor have a neat solution to start doing this in the field or studio.
Lots of people start their shooting sessions with a shot of a grey card. This may not sound as much fun as starting them with a shot of rye whiskey, but in the end it delivers a better result. They carry the image of that grey card through the entire capture and computer stage and then look at it on the screen. When they can manage to see the same colour on the screen as in their hand they are on target. If they can carry that through to a finished file or print they are home safe.
I am afraid that this is an over simplification, but it is better than just setting the camera to Auto white balance and hoping for the best. Hope delivers sometimes but never when you are home to sign for it...
Datacolor have made a small cube that has black, white, and grey panels on all six sides. It has a tripod socket on the bottom and a cord to hang it from a Christmas tree on the top. You capture it in your first picture and then look at it in the final computer image, just like the flat grey card - but in this case it is bathed in the scene light from 6 different angles.
There are two extra features that are unique - a silver ball on the top that will capture and display the brightest of the specular highlights that the lighting affords. You'll know what your white-out point is.
Like a Highlander on guard duty, you will also know where the black-out point is - there is a hole on one face of the cube that allows light in but never lets it out again. Like the ATO and your tax money...
In store right now, and the best bet for quick post-production time that I know.