If you enjoy ink blending or stamping, keeping a list of ink swatches can be beneficial. Why?
1. It helps to organize your supplies. I like to keep my ink pads in color order (ROYGBIV then neutrals).
2. You can easily see what colors you have so that you don't accidentally purchase a color you already have. It can also show what color family you might need.
3. Swatching helps you see the ink pad's true color as it can look different on the lid than it does on paper.
4. A swatch list can help you plan projects with colors that complement each other.
5. Last, a swatch will show you the actual properties of the ink such as saturation, shimmer, or having a chalky appearance (like Oxides).
Making ink swatches is easy to do, and it doesn't have to be fancy or time-consuming. I suggest using the same card stock you typically use for crafts. You can apply the ink to small cards and attach them to a piece of cardstock, or you can directly swipe the ink onto the paper. Then write with a pen what type or brand of ink each sample is as well as the name of the color. Last, decide where you will store your ink swatches so they will be handy when you need them.
I hope this encourages you to make some ink swatches.