This document discusses the environmental impact of credit cards and proposes ideas for more sustainable alternatives. It notes that most credit cards are made of PVC plastic, which is not sustainable. Research in the form of surveys and interviews shows that people receive many credit cards in the mail and often throw old cards away without recycling them. The document then proposes three approaches to creating a more sustainable credit card: 1) altering the purchasing system, 2) finding new uses for old cards, and 3) raising awareness of overconsumption. It asks questions about changing the material of cards to something more precious in order to encourage thoughtful use. A prototype is presented for a credit card made of recycled PVC that could be converted into a solar panel at the