Practical guide
Value comparison guide: Unit Prices, Bulk Buying and Subscriptions
Value comparisons work best when you divide the cost by the thing you actually care about: ounces, servings, square inches, months or uses.
Unit price is a translation
A unit price turns two messy choices into the same language. If one item is larger and more expensive, the unit price tells you whether it is actually better value or just bigger.
Bulk buying is not automatically cheaper
A larger pack can have a lower unit price, but only if you will actually use it before it expires, breaks, gets wasted or ties up money you needed elsewhere. The Price Per Unit Guide helps compare options by the useful unit instead of the headline package size.
Recurring costs need time
Subscriptions are unit prices with time as the unit. A monthly price is useful, but a yearly total is harder to ignore. Use the Monthly Bill Audit Planner when you want the full stack.
Cheap is not always best
Unit price helps with clarity, but it does not make the decision alone. Waste, storage, quality and preference matter. The goal is to know the tradeoff before choosing.
Play it: value in two worlds
Open the Price Per Unit Guide. Compare a small pack and a large pack using the same useful unit. Watch the unit price, not just total price.
Then open the Monthly Bill Audit Planner. List the recurring services you actually use. Both pages are value checks, but one compares product units and the other compares time.