What are tennis balls used for in laundry?
What are tennis balls used for in laundry? When you’re washing anything down-filled, such as a comforter or bed pillows, adding a few new, clean tennis balls to the dryer will help fluff them up. If you’re ever pulled a freshly-washed pillow out of the dryer to find it had become lumpy and misshapen, the tennis ball trick can prevent that.