If you think composting is a bunch of garbage, think again. By collecting yard and kitchen waste you’d toss anyway, you can create a nutrient-rich, organic material that works wonders when added as a fertilizer, mulch or conditioner for garden beds and lawns. It can even be used as potting soil in planters. As a soil amendment, compost can boost the health of your plants and grass. And, mixing compost into soil can help improve drainage when there’s a lot of clay, or help sandy soil …