Here's a time-tested tip, and a good one worth repeating: Don't drink your morning coffee from a disposable coffee cup. Americans toss about 25 billion Styrofoam and paper disposable cups away every year. Not only are those cups almost impossible to recycle and nonbiodegradable, they contain chemicals like BPA and styrene that have been linked to significant health problems. Make the pledge to buy a reusable BPA-free thermos and fill it up in the morning instead. It will keep your hot beverage hot longer, and you won't be tossing anything away.