Southeastern Grocers' Harveys and Winn-Dixie chains tapped in to Procter & Gamble's April 3 brandSaver FSI drop with features in March 30 circulars offering free SKUs of Gain dish detergent, liquid fabric softener and fabric softener sheets as well as Church & Dwight Co.'s OxiClean stain remover to store loyalty cardholders who buy Gain liquid laundry detergent.