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California resident Sara Dunaway-Seitz got married last year. While planning her nuptials a friend suggested an app called Yerdle that offered a modern twist on bartering.

"I was pulled in by the idea of getting things I could use in the wedding for dirt cheap, but the more that I got the hang of it, the clearer it became Yerdle would become an outlet for me to reduce clutter more than acquiring new things," she says.

"In the 15 months I've been an active member, I've tallied up 325-plus gives, and at last check was at about a three-to-one give/get ratio."

Users list items they no longer want or need, priced in Yerdle dollars. They can then be used to buy items from other members of the community

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