A rain barrel is a container used to collect and store rainwater from rooftops. When it rains, water flows from the roof into gutters and downspouts, directing it into the barrel. This collected water can be used for various purposes, such as watering gardens, washing cars, or even filling bird baths. Using a rain barrel helps conserve water and reduces the demand on local water supplies. Rain barrels come in different sizes and styles, making them suitable for various homes and gardens. Many people choose to decorate their barrels to blend in with their outdoor spaces. By using a rain barrel, you can save money on your water bill while helping the environment.