There's money to be made in returning e-commerce orders

Every week, dozens of people walk into Petal and Wax, a Marina del Rey gift store, to return items they bought from online retailers.

They bring in blouses from Eloquii, shorts from Chubbies and bags from Everlane.

Instead of telling them to buzz off, Evelyn Taplin, who runs Petal and Wax, gladly...