
Bartering is an old, old idea. It worked for hundreds of years before we came up with this cash idea. I've got a chicken, you've got this pottery bowl. Let's trade. Stuff isn't all that works in the bartering system, either: services, skills, and benefits can be traded. You hunt, I'll gather. (Or vice versa, depending on who is better with a spear.)
Bring back the benefits of bartering to your life. We all have stuff we don't need, or professional services and special skills we can trade. Other people have stuff we do need. It's just a matter of finding a good swap.
Swapping rather than shopping means that you get rid of your unwanted stuff without sending it to the landfill or processing it through a recycling center. It goes straight to someone else who wants it and will use it, without the extra packaging. Swapping means you get the stuff you need without purchasing new, packaged goods. You can also avoid that drive to the store, if you swap small stuff through the mail or choose a meet-and-swap location that is close to home.