Americans consumed 13.7 billion gallons of bottled water in 2017 - more than any other beverage by volume - boosting an industry worth $18.5 billion.  67.3% of bottled water sold in the United States is in single-serve plastic bottles.  70% of those plastic water bottles are not recycled.  Globally, about 20,000 plastic bottles are bought every second, the majority of which contain drinking water.  In 2013, Concord, MA, became the first US city to ban single-serve plastic water bottles, citing environmental and waste concerns.  Since then, many cities, colleges, entertainment venues, and national parks have followed suit, including San Francisco, the University of Vermont, the Detroit Zoo, and the Grand Canyon National Park.  
The US Mint shipped 8.4 billion pennies for circulation in 2017, more than all nickels (1.3 billion), dimes (2.4 billion), and quarters (1.9 billion) combined.  While countries such as Australia, Canada, and New Zealand have phased out their one-cent pieces, Harris Poll found that 55% of Americans are in favor of keeping the penny and 29% want to abolish it. The US Mint produces coins as instructed by Congress, so a law would have to be passed by Congress and signed by the President in order for pennies to be removed from circulation.  Several unsuccessful legislative efforts have sought to bring about the penny's extinction. Most recently, in 2017, Senators John McCain (R-AZ) and Mike Enzi (R-WY) sponsored ultimately failed legislation that would have suspended minting of the penny.