I was buying a mattress last month. Found the one I wanted, at a decent price, clicked through to checkout — and there it was. £49.99 delivery. For a mattress I was already paying £400 for. Closed the tab. Bought it somewhere else that did free delivery, even though the mattress itself cost £30 more.
That’s the thing about online shopping now. The promotion matters more than people think. And sometimes, the promotion that wins isn’t even a discount — it’s just not being charged extra for something that feels like it should be included.
Valentine’s Day is round the corner and I already know what’s going to happen. I’ll want to order flowers, chocolates, maybe a nice bottle of something. Three different shops, three different delivery charges. And I’ll end up consolidating everything into one order from whoever offers free delivery, even if their selection isn’t quite what I wanted. We’ve all done it.
But here’s what the research actually says about which promotions work on us Brits — and some of it might surprise you.
Free Shipping: The One That Decides Everything
This Isn’t a “Promotion” Anymore — It’s Expected
Free shipping stopped being a nice bonus years ago. Now it’s baseline. When it’s missing, people leave. Simple as that.
The numbers back this up. 47% of customers abandon their carts when extra costs like shipping appear at checkout. That’s nearly half of everyone who was ready to buy, gone, because of a delivery charge they didn’t see coming. And here’s what’s mad — free shipping can reduce cart abandonment by 20%. Not a small tweak. A genuine shift in how many people actually complete their purchase.
But it’s not just about whether shipping is free. It’s about when you find out. 49% of respondents in Baymard’s study said they found extra costs like shipping, tax, and miscellaneous fees too high — but the issue is often that these costs appear at the last second, after you’ve already mentally committed to buying.
How Retailers Use Thresholds: What’s clever is how retailers use thresholds. You’ve seen it — “Free delivery on orders over £50.” And it works. Research from Sendcloud found that:
- 73.1% of UK shoppers will add extra items to their basket just to hit a free shipping threshold
- The average threshold sits around £24 — low enough that most people can justify throwing in one more thing
For big-ticket items like furniture or appliances, the story changes. Furniture has an 81% cart abandonment rate — the highest of any category. That’s not surprising when you think about it. A £15 delivery charge on a £20 item feels outrageous. On a £500 sofa, it’s annoying but tolerable. But £50 or £60 for “white glove delivery”? That’s when people start looking elsewhere.
The takeaway is simple: if a retailer isn’t offering free shipping, or at least being upfront about costs from the start, they’re losing nearly half their potential customers before checkout even finishes.
Discount Codes: The Hunt That Never Stops
We’re a nation of code hunters. Before purchasing just about anything on the internet, there’s that moment when you open a new tab and type “[shop name] discount code” in Google. Sometimes you find one. Sometimes you end up on a dodgy site promising 80% off that definitely doesn’t work. But we do it anyway.
New research suggests 83% of online shoppers would have bought at full price despite using a discount code. That’s not a niche behaviour – that’s basically everyone.
What makes codes so effective is the psychology. A percentage off is like you’ve won something. You’ve outsmarted the system. Even a 10% code on a £30 order — saving you three quid — triggers that little dopamine hit of getting a deal.
96% of millennial parents use paperless/digital coupons (vs. 95% of all parents, 92% of general millennials). And coupon codes drive impulse purchases too — they’re estimated to influence around 70% of unplanned buys.
The frustration comes when codes don’t work. 46% of shoppers give up if a discount code doesn’t work at checkout. That’s a massive drop off, for something which should be easy. Expires codes or unclear terms retailers shooting themselves in the foot.
There’s a reason why hunting for bargains extends across all digital categories. People chase free spins from NetBet with the same energy they chase ASOS promo codes — that feeling of getting something for nothing, or at least for less, is universal. Whether it’s fashion or entertainment, the mechanics are the same.
Loyalty Schemes: Everyone’s Got a Card (Or Three)
Here’s a stat that stopped me: 97% of shoppers are members of at least one supermarket loyalty scheme. Ninety-seven percent. The average person holds three memberships.
Tesco Clubcard, Sainsbury’s Nectar, Boots Advantage Card — these aren’t optional extras anymore. They’re how prices work. Walk into Tesco without a Clubcard and you’re paying a different price to everyone around you. The “member price” has become the real price, and the shelf price is essentially a penalty for not signing up.
This shift happened quietly but it’s changed how we shop. The CMA did a deep dive into loyalty pricing in 2024 and found that the savings are genuine — 17-25% off on over 50,000 products, generating £5 billion+ in value for members. That’s not marketing fluff, that’s real money.
The Bigger Picture:
- 80% of UK consumers belong to at least one general retail loyalty scheme
- Market growing at 11.7% annually
- Growth driven mainly by cashback programmes and member-exclusive discounts
What makes loyalty schemes sticky is the psychology of progress. Watching points pile up, getting closer to a reward – this is the same mechanic that keeps people engaged in games. You feel like you’re making something, even if it is just 47p off your next meal deal.
The disadvantage is fragmentation. Three loyalty apps, three different point systems, three sets of terms and conditions. Some people handle it brilliantly. Most of us have a Nectar card lying around with 200 points on it which we’ll never remember to use.
BOGO’s and Multi-Buys: The Volume Play
“Buy one get one free” should not work as well as it does. Mathematically, it’s the same as 50% off. But psychologically, it strikes different.
When you receive something “free,” it has a sense of being a gift. When you get 50% off, it feels like less of a rip-off. The framing is extremely important. Research consistently shows consumers prefer BOGO deals to equivalent percentage discounts because the free item is tangible – you are actually getting more stuff, not just paying less.
These offers take first place in some categories. In UK supermarkets, 28% of chilled ready meals and 15% of processed meats are sold through multi-buy promotions. For household goods, beauty products, and anything consumable, the “3 for 2” or “2 for £5” structure is everywhere.
The catch is that they don’t work unless you really need multiple. Nobody needs three jars of mayonnaise. But you might buy them anyway because the deal is right there, and mayonnaise doesn’t go off for ages, and it just seems wasteful to pay more per unit when you could just.
Retailers know this. Multi-buys are partly about moving volume, partly about increasing basket size, and partly about making you feel like you’ve won even when you’ve spent more than you planned.
Free Gifts: The Unexpected Delight
There’s something about a free gift that a straight discount can’t replicate. A £10 voucher saves you money. A free gift — even one worth less than £10 — feels like generosity.
Beauty and skincare brands have got this done to perfection. “Spend £50, get a free makeup bag worth £25.” The bag might cost them £3 to produce, but to the customer, it feels like a bonus on top of what they were already buying. It’s additive not subtractive.
The best free gifts are complementary to the main purchase. A sampling set when purchasing a full-size product. A concomitant accessory with clothing. An upgrade no one requested, but everyone likes. These feel considered rather than random – like the brand actually thought about what you’d want.
Subscription boxes got this right from the beginning. The whole model is basically “pay for some stuff, get surprised by other stuff.” The element of surprise is much more satisfying than knowing exactly what you’re getting at a lower price.
For retailers, free gifts also hold a practical purpose – they can be a way of introducing a customer to a product that they wouldn’t otherwise have tried. That sample may result in a full-size purchase at some time. The strategy is part discount, part marketing all wrapped in the psychology of receiving.
Free Returns: The Safety Net
This one gets overlooked as a promotion, but it absolutely is one. Free returns reduce the risk of buying something you can’t see or touch or try on. And that risk reduction is worth real money to shoppers.
The numbers tell the story. 72% of British shoppers cite free returns as a top priority when shopping online. Even more telling: 41% say the lack of free returns prevents them from buying from a brand entirely. Not “makes them hesitate” — prevents them completely.
Fashion and apparel has a 76% cart abandonment rate. Part of that is sizing uncertainty, fit concerns, not knowing if the colour will look right in person. Free returns address all of that. They essentially say “try it, and if it doesn’t work, no harm done.”
ASOS built an empire partly on this. Their return process is so smooth that people order multiple sizes knowing they’ll send most back. That sounds expensive for the retailer, and it is — but it also means people buy who otherwise wouldn’t. The maths works out.
Some retailers are pulling back on free returns now, citing costs and environmental concerns. Understandable, but they’re likely to see cart abandonment climb as a result. The expectation has been set.
Flash Sales: The Urgency Factory
“24 hours only.” “While stocks last.” “Ends midnight.”
Flash sales are effective because they narrow the decision window. There’s no time for comparison shopping, no time to wait and see if it doesn’t go cheaper, no time to talk yourself out of it. You either buy now or miss out.
The psychology is pure FOMO. Fear of missing out on a deal that might not come round again. It’s the same mechanic that makes people queue outside of shops on Boxing Day morning – the limited availability makes the deal feel more valuable than it objectively is.
Done well, flash sales create excitement. Done badly, they create cynicism. We’ve all seen the “FINAL SALE – LAST CHANCE” emails that come every week from the same brand. After a while, the urgency feels manufactured because it literally is.
The best flash sales are genuinely time-limited, clearly communicated, and actually offer something worth rushing for. Stock transparency helps too — showing “only 3 left” creates urgency without feeling manipulative (assuming it’s true).
For bargain hunters, flash sales are basically sport. The thrill of catching one at the right moment, securing something before it’s gone — that’s entertainment as much as shopping.
Why Any of This Matters
Strip away the marketing speak and promotions work for simple reasons. People want to feel like they’re getting a good deal. They want the transaction to feel fair. And they really, really hate surprise costs at checkout.
The research is clear on what matters most:
- Free shipping decides whether people buy at all
- Discount codes trigger the purchase
- Loyalty schemes keep people coming back
- Multi-buys increase how much people spend
- Free gifts create delight
- Free returns remove risk
- Flash sales create urgency
Different promotions for different purposes, but all tapping into the same basic desire — getting more value for your money.
What has changed in the recent past is the freedom of choice.When one of the retailers delivers at a fee, another does not.
In case one of the codes fails to work, you can locate another store that accepts theirs.That power has been changed by moving it to accept consumers who will shop around, compare and bargain.
In my case, the case comes back to that mattress. Good product, fair price, lost sale, all because of a charge on delivery that was perceived to be exorbitant. The retailer was likely to make their profit off the cost of delivery. They also lost a customer, who had purchased elsewhere and will never go again. The most effective promotions do not only attract the customers.
They eliminate the causes on which they were going to leave at all.It is not a bonus to offer free shipping, but the minimum.All the rest is a continuation of that.
