Trash cans are containers used to hold waste materials until they are disposed of properly. They come in various sizes and designs, often made from materials like plastic or metal. Commonly found in homes, offices, and public spaces, trash cans help keep environments clean and organized by providing a designated place for garbage. Most trash cans have a lid to contain odors and prevent animals from accessing the waste. Some are equipped with features like foot pedals for hands-free operation or recycling compartments to separate recyclable materials. Proper use of trash cans contributes to better waste management and environmental protection.