Diapers are the most expensive item for parents of little children, thus it's critical to cut costs.
Every home soon runs out of milk, so filling up at the pharmacy while picking up a prescription sounds like an easy fix.
Yes, this is the most obvious item to purchase at a pharmacy, but as Consumer Reports discovered, big-box retailers like Costco and Walmart offer prescription medications at lower prices.
Additionally, Consumer Reports discovered that the vitamin selection at Rite Aid, a network of pharmacies, and other bargain stores had inferior supplements.
It's significantly better for you to buy toilet paper in bulk, according to Good Housekeeping Institute research.
In addition to examining what to never purchase at drugstores, such beach chairs, the Today show also looked at what to buy at warehouse clubs like Costco and BJ's.
While drugstore prices are substantially lower than those of beauty retailers like Sephora and Ulta, warehouse stores often offer even better deals.