## 15. Consider Transportation Time
The journey between the warehouse and your refrigerator is another factor that shouldn’t be ignored.
Milk is refrigerated, so keeping it cold during transportation is important.
If you live close to Costco, this may be almost irrelevant.
If your drive home is long, particularly in warm weather, you’ll want to plan your grocery trip accordingly.
One practical approach is to purchase refrigerated items toward the end of your shopping trip and head home afterward.
For especially long journeys, an insulated cooler can provide an additional layer of protection for refrigerated groceries.
