This ^^^^ is what I do. I purchase a charm pack of each line and all of the colors in their solids, mirage and basics. Then I know what the real color will be when I get it. And it is also great for picking complimentary pieces for a focal fabric. I put a 'header' on the pieces as they come in. The line name, color number and all the other information to locate them easily. I then use double-sided tape and mount them to the info cards. I punch a hole in the corner and group them on rings.
What a great idea. I buy their fat quarters.