Hello everyone,
today I was shopping and I extended my collection of Copics, because even with all my colors I'm always missing the right one. But with all these colors in my stash I often loose the overview over which colors I have and how they look on a piece of cardstock. That's why I build a color table in Excel. There I not only write down the name and the number, I also write down how many markers of a specific color I have (unfortunately I already bought some Copics twice) and what kind of marker they are.
That way I can always choose the matching color without trying it out on a scrap piece of paper and checking if the combination is ok. To prevent the color swatches from getting dirty, I put them in a plastic pocket. For everyone wondering where the rest of the colors, e.g the earth tones, are I made them double sided ;)

And to always know which colors I'm missing while shopping, I put a copy in my Google Drive, so that I can always have a look with my Smartphone.

Copic Marker Color Swatches