Poshmark lets you buy and sell clothing right from your smartphone.
Just snap a few photos using the app.
Add a description and a price.
Once it's listed, anyone can buy your items or make a counter offer.
Poshmark does keep part of your sale as a commission.
It's $2.95 for orders under fifteen dollars and twenty percent for bigger purchases.
eBay valet lets you tap into eBay's huge community of shoppers without the hassle of listing an item.
Instead, he'll ship it to eBay free of charge, and professionals take care of shooting photos, and creating a description.
If the item sells, you'll earn up to 80% of the sale.
Finally, if you'd rather sell your items in person, VarageSale let's you buy, sell, and trade items with your neighbors.
If a neighbor wants to buy your item, you'll set up a time to meet, and make the exchange.
In San Francisco, I'm Sharon Profis, www.CNET.com for CBS News.