When Tik Tocker Evelyn Huarez saw that her toddler had done this, she thought the Costco rug she bought just four months ago was a sunk cost. But then she says she remembered the company's risk-free return policy. Oh my gosh, they gave me a full refund.like Evelyn's return just one apparent example of the company's famous risk-free 100% satisfaction guarantee to members allowing customers to return almost anything with some exceptions for things like diamonds and alcohol and cigarettes and airline or concer ...