Keep broken or unwanted tech like cell phones, tablets, GPS, keyboards, cables, calculators, DVD players, or electronic toys out of the landfill. Recycling the inner components of electronics reduces mining operations for new materials. For example, an ore called coltran, used in cell phones and related devices, can be found in the Democratic Republic of Congo. Mining for it creates problems in the fragile ecosystem where critically endangered gorillas live, so help them out by properly disposing of your electronics.