Compare the total price, not just the discount

A big percentage is only useful if the checkout total is genuinely competitive.

Before buying, compare the exact model, pack size and condition at a couple of UK retailers. A smaller pack or an older model can make two similar-looking offers hard to compare.

Add delivery, membership costs and any minimum-spend requirement. If a voucher only works on a subscription, compare the one-off price too and read the cancellation terms.

Treat a “was” price as a reference, not proof of the usual selling price. Check price history where it is available and decide what the item is worth to you before the sale timer starts.

General shopping information, not legal advice. Retailer policies can change.