Because I am counting on shrinkage as part of the texture, I do not pre-wash my fabrics. Which means that I am a huge fan of Color Catchers. The ones on the right were from the first wash. I was expecting a lot of color as I'd used the brown, purple and pink markers for the quilting. I trimmed up the quilt after the first wash before binding. I was rather surprised at how much blue came out in the second washing. The only added fabric was about a yard of batik for binding.