The three best "R" words around!
Reduce your waste with actions like composting!
Reuse items that you would normally throw away and make them into something useable and functional!
Recycle by following your cities' guidelines and getting rid of items that can be recycled in the correct manner!
Articles I've written on the topic:
Recycling Guidelines for Red Wing, MN
Five Earth Day Crafts for Children
Educating Your Children About the Three Rs
Have have you used the 3Rs today?