She uses the Poshmark app to see what others are selling similar items for to help her decide if she can make enough profit to make it worth her time. My sister does pretty well and it is ...

In 2015, in her first year of college, she downloaded the app for Poshmark, a kind of Instagram-meets-eBay resale platform. Soon, she was selling as well as buying clothes. This was the golden age ...

The following article has been edited for length and clarity. I've been on the Poshmark app since 2016. I started selling in college to clear out my closet. I made only pocket money from selling ...