Make the offer
make sense.

Worked examples, clear assumptions, and a useful next step for everyday shopping decisions.

At the shelf

The smaller price tag can cost you more

A practical method for comparing pack sizes, multipacks, weight, volume, and cost per use, with examples you can check yourself.

At checkout

Understand sequential discounts, dollar coupons, and advertised savings with transparent arithmetic and a comparison checklist.

Buy less, buy better

Find the break-even consumption rate for a bulk purchase and account for waste, budget, storage, and shared purchases.

At checkout

Compare a shipping fee with the cost of filling a cart, and distinguish a cheaper checkout from buying something useful for later.

At the shelf

Measure a hidden price increase when package size changes, using a simple before-and-after worksheet and transparent examples.

A better shopping habit

A short, reusable decision process for comparing real checkout cost, usable quantity, product condition, and the cost of changing your mind.