Composting and using mulch are not new ideas. Compost is the natural breakdown of plant remains and other once-living materials to make an earthy, dark, crumbly substance that is excellent for adding to houseplants or enriching garden soil. Making your own compost is not only beneficial for your garden, but ecologically sound as leaves, yard waste, and some household waste and organic materials can be used. Mulch is a layer of material placed over soil to modify the effects of the local climate. It is used to hold in moisture, insulate from cold, and as an assist in controlling weeds. To learn more and share knowledge about compost and mulch, ask and answer questions about them here.