Looking for the ultimate way to recycle? Use disposable goods as plant containers! Milk jugs and 2-liter bottles, for example, make excellent homes for your plants. All you need to do is cut off the bottom portion of the container; wash it thoroughly with soap and water; make several small holes for drainage; fill it with soil and plant your seeds. As any environmentalist will tell you, even though these containers are made to be used once and thrown away, they're not biodegradable and can be reused multiple times in your garden.
Milk jugs also make excellent plant protectors! Use scissors to cut off the bottom of a jug and place the remaining upper portion firmly over your plant (cap removed) making sure to imbed it in the soil so it won't easily fall over.