How to tell whether a sale is actually a good deal

Ignore the percentage for a moment

A large percentage off an inflated starting price can still be a poor deal. Compare the exact model, size, quantity, shipping, and return policy across stores. For groceries and household supplies, the unit price is often more useful than the package price.

Use a three-question pause

Before buying, ask whether you planned to purchase it, whether you already own something that solves the same problem, and whether you would still want it without the sale label. If the answer to any question is no, wait a day.

• Check price history for expensive online purchases.
• Include delivery, membership, accessories, and replacement supplies.
• Do not buy a larger package unless you can use it before it expires.

Know the exception

Waiting is not always smarter. A known staple at a genuinely lower unit price can be worth buying in a reasonable quantity. The goal is not to avoid spending; it is to avoid turning a discount into unnecessary spending.