An area that is often missed is that of camera profiles.
Building a custom colour profile for your camera is relatively easy with tools such as the X Rite ColorChecker, but today Adobe tend to build very good camera profiles into their products. If your a studio worker then photographing a grey card at the start of your session and getting your white balance correct, plus using the built in profile in Photoshop or Lightroom will get you accurate colours.
![Colour Checker](https://brown-family.org.uk/wp-content/uploads/2013/03/Colour-Checker-300x201.jpg)
![Colour Checker-2](https://brown-family.org.uk/wp-content/uploads/2013/03/Colour-Checker-2-300x201.jpg)
Which do you prefer?