According to TFA, for household recycling, aluminum and cardboard are the most valuable. Also according to TFA, the economics for plastic (as it's currently pr

According to TFA, for household recycling, aluminum and cardboard are the most valuable. Also according to TFA, the economics for plastic (as it's currently priced, externalities not included, blah blah) are not as favorable. So TFA taught me to be less skeptical about cardboard recycling.