How do I decide which colors to use? I get the balls of yarn I think I'd like to use and set them in a place where I'm sure to see them as I go about my daily business. I rearrange them in passing, and toss out one here and there. When I get a group I like, I sometimes make these quick little i-cord worms to see how the colors work together, knit up. Then I carry the little dears around with me, out and about, so I can observe them in different lights. Sometimes they're wee little things like the ones above...some become long coiled serpents, waiting in my pocket.