Everyone wants to avoid waste. And—yes, the pun is the lowest form—everyone wants to avoid waist. An effective way to do both is to eat only one-half the entrée at a restaurant whenever you eat out. Seeing that the American conception of a "portion" is generally equivalent to a meal in other nations, this is not a threat to the health of the standard-issue eater in the U.S.A. However, generating extra landfill waste through requesting carry-out packaging could be construed a threat to the planet. Fear not: no longer will you be able to use Styrofoam avoidance as an excuse to clean your plate.