I found Purell hand sanitizer refills on clearance at my Walgreens. Use a $0.75 printable Purell coupon at checkout. Afterwards, submit for two $0.75 rebates on your smartphone. One rebate is through the Ibotta app and the other is through the Checkout 51 app. Stacking the rebates with the coupon makes this hand sanitizer a $0.46 moneymaker!