
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 ...