I am really into recycling and re-using almost anything that comes through our household, but writer Alex Bhaswara had a few suggestions that I haven't tried yet.
Here is just one idea from the article, referring to what you can do with the lids from metal cans.
Now, don’t throw away those lids! The lids can be placed at the base of light loving plants, such as tomatoes! The lids will reflect sunlight, thus providing extra light. In addition, the reflected light has been shown to repel plant eating insects and aphids. To deter birds from your fruits trees, punch holes in the lids and hang them from tree branches. Apparently the reflected light and movement scares these rascals away.
Other suggestions offer new uses for used jello and pudding containers, styrofoam produce trays, gallon milk jugs, popsickle sticks and other items. If you like to re-cycle everything, like I do, check out the article for more details!