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The shopping tricks costing you money

Shops, supermarkets and websites spend fortunes working out how to get a few extra euro out of you on every visit — and most of it works because you're busy and not looking closely. None of these tricks are illegal-feeling enough to make the news, but together they quietly drain hundreds a year from ordinary households. Here are the big ones, and the simple habits that beat every single one.

Quick facts

The one rule
Always check the unit price (per kg / per litre / per 100g)
Worst offender
"Multibuy" offers — often dearer than buying singly
Online trap
Fake urgency, drip pricing & pre-ticked add-ons
Your shield
Strong consumer rights — most people never use them

In the supermarket

1. The "multibuy" that costs more

"3 for €5" feels like a deal — but if a single one is €1.50, three singles cost €4.50. The "offer" is 50c dearer. Roughly one in ten multibuy promotions is more expensive than just buying the items separately. The fix is always the same: look at the small unit price on the shelf label (per kg, per litre, per 100g) and compare. It's the one number the trick relies on you ignoring.

2. Shrinkflation

The price stays the same, but the packet quietly shrinks — 10 biscuits become 8, the 1L becomes 900ml. You're paying the same for less. Again, the unit price catches it: a product that "feels" the same price has often jumped 10–20% per gram. Watch for "new look!" packaging — it's often where shrinkflation hides.

3. The fake "was" price

"Was €40, now €20!" only means something if it really was €40 for a meaningful time. Some retailers briefly bump a price up so they can "discount" it later. If a deal looks huge, check the price history (Google the product, or use a price-tracker for online items) before you believe the saving.

4. Loyalty-card pricing

More shops now show a higher price for everyone and a lower "loyalty price" for cardholders. Sometimes the loyalty price is just the normal price, dressed up to make non-members feel they're losing out — and to harvest your shopping data. Loyalty cards can be worth it, but treat the "member price" as the real price, not a special favour.

The habit that beats all four: ignore the big promotional sticker and read the tiny unit price underneath. It's legally required to be there, and it's the honest number.

Online

5. Drip pricing

A €19 ticket becomes €31 at checkout once "booking fees", "service charges" and "admin" are added one screen at a time. The trick is to get you emotionally committed before the real price appears. Always scroll to the final total before deciding — and remember a near-identical item elsewhere may have the fees baked in honestly.

6. Fake urgency & scarcity

"Only 2 left!", "5 people are viewing this!", countdown timers that reset when you refresh. Most of it is theatre designed to switch off the part of your brain that compares prices. If a timer pressures you, that's your cue to slow down, not speed up.

7. Pre-ticked boxes & subscription traps

Pre-selected insurance, "priority" add-ons, or a "free trial" that silently rolls into a paid subscription. Before you pay, untick everything you didn't choose, and check whether a "free" trial needs your card and auto-renews. Diarise the trial end date the moment you sign up.

Know your rights — most people don't

You're far better protected than the checkout makes you feel:

Beat them all — 5 habits

1

Read the unit price, not the sticker

Per kg / per litre / per 100g. It exposes multibuys and shrinkflation instantly.

2

Scroll to the final total online

Ignore the headline price until you've seen every fee added.

3

Treat urgency as a stop sign

Timers and "only 2 left" are designed to rush you. Slow down instead.

4

Untick what you didn't choose

Add-ons, insurance, subscriptions — and diarise every free-trial end date.

5

Use your rights

Faulty or changed your mind online? You're owed a refund far more often than you think.

Common questions

Are loyalty cards worth it?
They can be — for shops you use a lot — but treat the "member price" as the normal price, not a special deal, and be aware you're trading your shopping data for it. Never buy something you wouldn't otherwise just to "get the points".
A shop says "no refunds". Is that legal?
A "no refunds" policy can't take away your legal rights. If an item is faulty, not as described, or you cancelled an online order within the cooling-off period, you're entitled to a refund regardless of any sign.
How do I check if a "sale" price is real?
For online items, use a price-history tracker or just search the product to see what it normally sells for. For groceries, the unit price tells you instantly whether the "deal" beats the standard pack.

This guide is general information, not legal advice. Consumer rules differ between Ireland and the UK and can change — confirm your rights with the CCPC or Citizens Advice for your situation.

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