I love you using the blending tool for my inks. But I didn't want to get the color "muddy" by using more than color for 1 sponge applicator And I'm seriously not going to remember what applicator went with what color just by looking at it. So I numbered them!
I put a number on the bottom of the ink pad in pen. Then put the same number on the corresponding sponge. Be sure to use a color you will easily see. So let's say I want to use tea dye. That ink is #2 so I get the applicator sponge labeled #2. WA La! No muddy colors.