You can see the December story by clicking here.
The kids' swap works just a bit differently. Instead of swapping individual items in envelopes, you trade kids' clothes by the box. You can search by size, gender, brand, season and type of clothes.
Boxes cost $13 to ship -- and once you've packed up a box of your children's outgrown clothes to trade out, you can choose the box you'd like to receive.
A whole box of kids' clothes for $13 is definitely a great deal.
To find out more about joining the invitation-only site, click here.
