## 2. Bulk Buying Only Saves Money If You Use It
This is one of the most important rules of warehouse shopping.
Buying a larger quantity is only a bargain if you actually use it.
Milk is perishable, which makes it different from products such as paper towels, canned foods, or laundry detergent. You can’t simply store it indefinitely and wait until you need it.
If your household drinks a lot of milk, a larger container can disappear surprisingly quickly.
For a large family, that may be ideal.
For someone living alone, however, buying a large quantity could create unnecessary waste if the milk isn’t consumed before it reaches the end of its usable life.
Before buying, ask yourself a simple question:
**How much milk does my household realistically use in a week?**
If you already know that you’ll finish the container comfortably, buying in bulk may make sense.
If you’re frequently throwing away leftover milk, a smaller package could be the better financial decision even if its shelf price is higher.
