Plum B2G2: Buy 2 Get 2 Free On All Products at Plum Goodness using the latest coupons, deals & offers from CouponZania. Plumgoodness has come back with a fantastic offer. Use Given Coupon Code To Avail This Offer. Add four products to the cart, and the two lowest items will be marked free. Valid on All Single Products Except Lipsticks.