Groceries
Check Whether Bulk Buying Pays
Compare package price, usable quantity and storage space. Keep size and product quality consistent when comparing.
Put it into practice
Estimate how much you will actually use. A 10-unit pack for $15 costs $1.50 per unit when all ten are used and $2.50 if you use six.
Make it a habit
Try a smaller pack if you are still testing how often your household uses the item.