Submission to the Vent 3

Why does the big discount store sell shampoo and conditioner in different shaped bottles so we run out of conditioner and still have a quarter bottle of shampoo left over? Do they expect us to buy a whole other bottle of shampoo for just a little conditioner? Then, what are we supposed to do with all the excess? I tried to make my own conditioner using a 4:1 solution of mayonnaise and club soda. All it did was ruin my pillow cases and attract bees every time I went outside.