Trolley Full of Colour: A £20 Supermarket Party Shop, Aisle by Aisle

Walk into a specialist party shop with a twenty-pound note and you tend to walk out with a themed napkin and a wistful expression. Walk into a mainstream supermarket with the same twenty pounds, a colour scheme and a plan, and you can lay on a full table for eight children with a bag each to take home. The trick is not extreme thrift. It is knowing which aisles do the heavy lifting and which ones quietly empty your wallet.

Here is the route we use. Prices are the sort of figure you would have seen on own-brand shelves in 2026 — they drift by store, by region and by week — and the budget is a hard £20. No vouchers, no loyalty discounts, no cheating by 'just grabbing' a branded multipack at the till.

Before you go: pick a colour, not a rainbow

Rainbow is our whole personality here at Rainbow Party Bags, but for a supermarket run, two colours beat five every time. Choose one main shade and one supporting shade: yellow and green, pink and lilac, orange and red. Why? Because own-brand ranges sell plain napkins, icing, jelly and paper plates in single colours, and you can match two of them without buying five of everything. Write your two colours on the back of the shopping list and do not deviate once you are past the trolley bay.

Stop one: fruit and veg — the cheapest colour you can buy

Grapes, satsumas, peppers, cucumber, strawberries, carrots. Around £3 here gives you fruit skewers, a crudité plate and a bowl of something that looks deliberate rather than dutiful. Look out for the wonky or imperfect bags where your store runs them; nobody at a party has ever inspected the symmetry of a chopped pepper. This is also the aisle where supermarkets demolish party shops on value — a punnet of strawberries costs less than a pack of printed cupcake toppers and actually gets eaten.

Stop two: bakery and the cake counter

Two sensible options, both under £3. Buy a plain own-brand sponge and a tub of own-brand icing, tint half of it with a drop of food colouring and smear it on with a butter knife. Or pick up an own-brand cake mix and a box of fairy cake cases and let the children decorate. Skip the £8 character cake. No child in living memory has remembered the cake's face; they remember who got the bit with the most icing.

Stop three: crisps, biscuits and the filler shelf

Own-brand multipacks of crisps, a packet of iced gems or the supermarket equivalent, and plain biscuits for decorating with whatever icing is left. Branding costs the most here and delivers the least. A six-pack of named crisps can run to three times the own-brand price, and at a party they disappear at exactly the same speed.

Stop four: drinks

Two litres of own-brand lemonade, or a bottle of squash plus a jug of tap water. Juice cartons are convenient but add up quickly; if you want them, buy the multipack and decant into a jug so nobody argues about flavours. One colour trick worth the effort: freeze cubes of squash or fruit juice the night before and drop them into the glasses. It looks like a slow, swirling rainbow and keeps drinks cold without ice dilution.

Stop five: paper goods — where the supermarket wins outright

A plain table cover, plain napkins in your two colours, paper plates, paper cups. Under £4 for the lot. The seasonal party aisle near the front of the store is the obvious trap: themed plates, printed banners and novelty tableware at three or four times the price of the plain version two aisles over. One coloured napkin per child, one fruit skewer and a plain table cover does more for the look of a table than any banner ever will.

Stop six: the party bag haul

Six or seven pounds is plenty for eight bags. Best value sits in stationery and small toys: own-brand crayons or colouring pencils, a small notebook, sticker sheets, bubble wands, hair bobbles or clips, a packet of seeds, and a couple of sweets per bag. Buy one multipack of paper bags and split the contents yourself. Pre-filled bags are where budgets go to die — you pay for the wrapping and the assembly, and the contents are usually the same bubble wand you could have bought in a pack of eight.

Age matters here. Anything small and hard is a no if toddlers are on the guest list, and bubbles should always come with the obvious adult-supervision reminder.

The swaps that save the most

• Printed themed napkins → plain napkins in one colour
• Ready-made sweet cones → a bag of own-brand sweets plus paper bags
• Helium balloons → a balloon bunch on sticks, or paper pom-poms
• Plastic table confetti → sliced fruit or a scatter of sweets
• Character cake → plain sponge plus a tub of icing
• Branded crisps → own-brand multipack
• Costume props bought new → one dress-up item from home, lent for the afternoon

The £20 receipt

• Fruit and veg: £3.00
• Plain sponge or cake mix plus icing: £2.80
• Crisps multipack: £2.00
• Iced gems and plain biscuits: £1.40
• Lemonade or squash: £1.20
• Table cover, napkins, plates, cups: £4.00
• Party bag contents: £5.60
• Total: £20.00

That covers eight children at the table and a bag each to take home. If your local prices have nudged up since you last looked, take the hit on the biscuits rather than the fruit — the fruit is what makes the table look like a party rather than a picnic.

What I would leave on the shelf

Anything wrapped in cellophane, anything with a character's face on it, and any 'party pack' that promises to do the thinking for you. The colour is doing the work. You are just pointing it at the right aisles.