How much fun is it to make color swatches? Right! I love it. Several years ago, I found the Arc or Levenger disc binding system and it's absolutely perfect for keeping this kind of an ongoing notebook. You'll see more in the video. The hole punch is kind of pricey but you can use a binder system for keeping all of your palettes or swatches in one spot.
I swatch everything from my paints to markers and colored pencils. There are great charts available over at Ranger Ink for their inks, sprays and paints. Go here to download. Very handy. Here is a link for Prismacolor colored pencils. That chart doesn't print the top line for me but it may just be my printer.
I've had loads of questions lately about watercolor: brands, mixing, how much paint to water, etc. My best advice is to pull out three primary and the three secondary colors and play with them. Look (above) at how many colors you can get with just the three primary.
Here is the video showing a close up of my Color Book. My next video will be on creating a palette with six colors.
The Arc Binding System is available at Staples stores and online. It'll come right up if you google it.