If you're like me, you have a ton of these sponge daubers! At first, I tried washing them out. Nope. Then, I tried guessing the colors, but you can't always tell what color the ink is by what color it turns the sponge dauber. For instance, Toile Pink is no where near that bright. So, finally dawned on me to start labeling them. I just snip a small rectangle out of scraps and right the name on the ink color on it. Then, tape it on. Simple. Not rocket science, but maybe it will help someone out there get a little more organized with their supplies.