Have you heard about collaborative consumption yet? It’s the latest way to “consume” sustainably and it’s practically free. Basically it’s a more technical term for swapping, and if you’re interested in trying it out, there are a bunch of sites that allow users to log on and trade in things they’ve outgrown for cool new items. It’s better for the planet too since all the participants are bartering things they already own instead of consuming new items that need materials, electricity and fuel to produce. If you want to see why so many people are into collaborative consumption, check out our list of top websites to help you get started or you can even start your own.