Coffee grounds add nitrogen, eggshells provide calcium, and even used paper towels (as long as they’re chemical-free) can help feed your soil. Avoid meat, dairy, and oily foods, as they attract pests and take longer to break down. Use a countertop compost pail to collect scraps conveniently, then transfer them to your backyard bin or community compost system. Once your compost is ready, you can use it to enrich flower beds, vegetable patches, containers, and lawns.