Starbucks has begun to sell reusable cups for just one dollar.
Anyone who uses the cup, or any other reusable container, gets a ten-cent discount for each refill. The coffee shop will also provide a boiling water cleanse for the container.
Starbucks officials say they want to serve five-percent of all drinks in reusable cups by 2015.
For more information you can go to their website at www.starbucks.com