Join TopCashBack. It's free and the savings add up fast. Vitacost is on there and it's often up to 6% cashback. It's easy to redeem as well. 2. Use Honey. Forget trying to look up coupon codes. Use Honey and it'll find the best usable codes when you go to checkout. I've saved hundreds. 3. Vitacost. No membership fee and there's always a coupon code. Use TopCashBack and Honey with Vitacost, and your soap savings are huge.