Balance is important in so many things. I've had difficulty finding it in a lot of ways lately. Most recently though it was white balance that was an issue for me. When I use my camera in the house on the manual setting I normally change the white balance for incandescent light. That isn't a problem until I go outside and start snapping pictures without remembering to change it to daylight. Now if you think that's not a big deal wait till you see the difference.
The first picture here was taken outside with the white balance set for incandescent light
Realizing what I did I changed the setting and took this one