I use the color catchers too. I do still separate the whites from the darks and since we have so many grays I have that pile too. And there is a pile for delicates - this is where the color catchers really go to work because there just isn't enough for separate loads and I will not wash them by hand. Same with the fabrics I bring home - they all go together with warm water and a color catcher (mainly because I want to know if one of the fabrics is going to bleed).