Before you throw anything away, really think about it. For example, if you’ve finished burning a candle that comes in a big glass jar, don’t waste it. Instead, drain out the leftover wax and use it as storage. This is called “upcycling.” Upcycling is “the process of converting waste materials or useless products into new materials or products of better quality or for better environmental value.” And it’s not just for people who love arts and crafts. These ideas are worth trying (and will make your home a whole lot cooler).