Amazon has the 4-Pack Amazon Basics Petroleum Jelly Skin Protectant (7.5oz Jars) on sale for $9.88 - 20% off coupon (check "Save an extra" box, eligible on first S&S order for this product) = $7.90 with free shipping on $35+ or with Prime (extra 5% off with 5+ S&S orders). Roughly 26 cents per ounce.