My husband and I do variety shows in our neighborhood involving 6 people and thirty songs per show. I have found that by writing the names on the top of each card and their song choice underneath we can mix and refigure the cards as many times as is needed to obtain the right combination and blend of music. We use one card per person/per song and save them for use in future shows. This is so much easier than trying to accomplish the same thing on a computer. A carry-over from my days in high school writing term papers. I would not be without them.