Reuse your containers. Rinsed out glass and plastic containers make great storage containers for food and hardware. Refill and reuse your propane tanks. If you must discard a tank, empty it completely and bring it to a scrap metal dealer. Never burn your trash.
Backyard burning only transforms solid waste into an air pollution problem.
Depending upon what gets burned, the human health and environmental risks associated with such pollution are considerable. It's also against the law. You get on average 34 pounds of junk mail each year. You didn't ask for it, but you can ask to make some of it go away. Ways to do this include writing to the Direct Marketing Association and telling it to stop its members from sending you unsolicited mail.