Since it is a FAQ recently, I figured I would post this.
The Artist loves to have things organized. I love it when she keeps her supplies smaller than suitcase. So we settled on
This Pencil Case to hold her colored pencils. Here it is in action:
It holds every colored pencil, pen, and paint marker she uses with space for all the little erasers and stuff shoved in there. The price seems high, but there was nothing else on the market that seemed to make it work.
Just as a warning, it is bigger than it seems. It is about the size of a 1000 page hardcover books, which makes it portable, but this is not going to fit in a pocket, or even many purses. She has a purse that fits it, but it is a close thing (and contributes to the 10lbs that purse weighs).