"I think it took me 10 minutes to figure it out and then after that I was already posting stuff," she said.
And that's why Poshmark is catching on with women. The posting process can literally be done from the closet.
"You just pick something out of your closet that you are sick of," she said.
She uses the app, to take a picture, type in some basic information, set a price, and that's it.
Pam's closet becomes an instant storefront, laid out in a female friendly fashion which separates that from eBay and Craigslist.
She thinks it's safer selling.
"With Craigslist, obviously you have to meet up with the people and I'd rather not do that," he says.
Poshmark takes 20 percent, handles the transaction, arranges shipping, even pays the shipping for the seller.
Pam's closet is popular and over 131,000 follow her listings.
Her fiance likes a cleaner closet.
"I'm cool, go sell -- get rid of your clothes," said Mark Cosio.
And she's buying clothes from other closets on Poshmark with the money she's making.
"It's guilt-free shopping for me," she says.