We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Andrea Barnes Andrea Barnes is a writer covering large cleaning appliances.

A war is bubbling up in the laundry aisles at Wal-Mart. The world’s largest retailer has struck a deal to be the exclusive carrier of a new, premium-priced laundry-soap brand in the U.S. And it has ...