A professional thrift shopper explains the basics of how to resell secondhand items online.

Thrift stores can’t sell everything—many donations, like mattresses or baby gear, are tossed for safety and sanitation reasons. Items such as broken mirrors, leftover paint, and used health products ...

From houses to vintage clothing to old furniture, "flipping" is becoming a popular path to creating an extra stream of income on the side. Many people these days flip their items of choice as a hobby ...