Want Better Color In Your Portraits?

Expo Imaging's ExpoDisc make Custom White Balance super simple, all you have to do is place the ExpoDisc at the end of the lens you would like to use. (Notice that you will have to have the correct filter size for each lens, I would choose the lens you most use for portraits)
Set the camera to manual focus mode, point the camera in the direction that you would like to shoot. Press the shutter and BAM you will have your grayish photo showing up.
Go to your menu, set camera to custom white balance. Use the image you just took as your custom white balance, and start shooting your portraits.

One thing I learned when shooting, if the lighting changes dramatically you will have to do your custom white balancing again, to insure the best possible outcome.

This will save you a ton of time in post production, when trying to get the correct color. It's worth every penny. The best part is that they are affordable.

ExpoImaging 77mm ExpoDisc Digital Warm Balance Filter (Portrait)