Which?

ALT A hand adjusting a modern thermostat on a wall, set to 20 degrees. Text below reads: "6 common heating mistakes wasting your money - and how to avoid them" with a "Which?" logo in the bottom corner.

ALT A person sitting at a table, holding a bowl of yogurt with blueberries. Below the image is text that reads, "Yoghurt and gut health: how to spot the beneficial bacteria." The logo "Which?" is at the bottom.

ALT An infographic titled "5 surprising things you can clean with your dishwasher tablets." It lists: 1) A burnt saucepan: simmer tablet water to loosen burnt-ons. 2) Oven racks: soak in hot water with a tablet. 3) Clothes: wash stained white clothes with a tablet in the drum. 4) Walls: use warm tablet water to clean but not washing-up liquid, as it could damage paint. 5) Fridges & garden furniture: clean with dissolved tablet water, avoid washing-up liquid. The Which? logo is at the top right.

ALT Fuel prices infographic by Which? showing a black arrow rising with a petrol pump nozzle and droplet featuring a currency symbol. Text highlights a 31% increase in petrol costs and 41% in diesel since late February, costing an additional £22 for petrol and £30 for diesel per tank. Red arrows symbolize rising costs.

ALT Chart titled "Are fuel prices taking you for a climb?" showing monthly refueling cost changes since February 2026. A red line represents diesel prices, and a blue line represents petrol prices. Diesel shows a 41% increase, while petrol shows a 31% increase. Data sources listed include Which? research, RAC Fuel Watch, Zapmap, and PetrolPrices.com.

ALT The image is an infographic from Which? detailing tips on saving money on fuel. It suggests searching "petrol pumps" on Google Maps for price comparisons, avoiding motorway services to save between £7.50 and £17 per tank, checking local independents for better deals, and skipping premium fuel for ordinary cars. An illustration shows two petrol pumps with fuel prices of £1.75 and £1.77 per liter for unleaded fuel.

ALT The image is an informative graphic by "Which?" on reducing fuel consumption. It features a title, "Behind the wheel: small habits that cut consumption," and a bullet list with tips: controlling speed, driving smoothly, and reducing drag and weight. There are illustrations of a speedometer and a car wheel.

ALT A large spider on a smooth indoor floor with blurred background, overlaid with text: "Why are there spiders in my house – and what can I do about them?" Logo: Which?

ALT A group of people are exercising on reformer Pilates machines in a studio. An instructor is assisting one of the participants. The text reads, "What is reformer Pilates and is it worth it?" followed by the logo "Which?

ALT A person sits at a desk with headphones on, holding a young child. Two computer monitors display video calls with multiple participants. A smartphone is visible in the person's hand. Text on the image reads, "This quick check can tell you if you're being ripped off on broadband," followed by the "Which?" logo.

ALT Assorted electrolyte supplement packages, including brands ORS and Wellthy, are displayed. The text below asks, "Do you really need electrolyte supplements?"

ALT A blue fingerprint with a masked face is centered on a pink background. "Which" is written to the left, and "2023" to the right of the fingerprint. Below, on a white background, it reads, "The latest scam alerts from Which?" with a "Which?" logo in the bottom left corner.

ALT People carrying shopping bags labeled "Black Friday" and "Sale" on an escalator. The text below reads, "Best Black Friday deals for 2026: what to expect from the sales" with the logo of "Which?" at the bottom.

ALT A person with curly hair reaches for an item on a supermarket shelf while holding a red shopping basket. The accompanying text reads, "8 own-brand Best Buys our experts love – and how they compete with the big names." The image features the logo of Which?, a consumer advocacy group.

ALT A Which? magazine cover titled "Supplements: the good, the maybe, and the not worth it." It features three bottles with drawn faces: a smiling blue face on the left, a neutral purple face in the middle, and a frowning green face on the right. The text suggests guidance on evaluating supplements.

ALT The image is a graphic from Which? titled "The wellbeing essential: vitamin D." It advises taking a daily 10mcg (400IU) vitamin D supplement in the UK from October to March for immunity, bones, and teeth. It notes that certain groups who cover up or are often indoors may need it year-round. The graphic includes a vitamin bottle with a sun and bones illustration.

ALT A graphic titled "Tips and Advice" from Which? focuses on iron and B12. It highlights the importance of iron for energy and oxygen transport, especially for those with specific dietary needs like vegans. An icon shows a supplement bottle with a heart symbol. Below, Vitamin B12 is mentioned as vital for nerve and blood cell health, with another bottle icon featuring a puzzle piece. Vegans and older adults are noted as groups that might need supplements.

ALT Sure, here's a description: "Informational graphic titled 'Save your money: vitamin C, collagen, glucosamine.' It features tips and advice on these supplements, including the ease of obtaining vitamin C through diet, the body's breakdown of collagen, and limited evidence of glucosamine's benefits for joint issues. Contains icons of a vitamin C tablet and a person's silhouette. Logo of 'Which?' at the top right."

ALT Four food items are arranged next to captions: A shows sliced buttered bread with butter on a cutting board; B displays a cheese toastie on a plate; C features a crusty roll on a white plate; D presents a bowl of tomato soup with a spoon and herbs. The top of the image has the text "Which?" and "Tomato soup's on. What's going in it?"

ALT A shelf displaying various brightly colored bottles of washing-up liquid. Below, there's text reading, "Best and worst washing-up liquids 2026" with the Which? logo.

ALT A hairbrush filled with strands of hair is shown. Below it is text that reads, "Hair loss: common causes and what treatments actually work." The logo "Which?" is at the bottom.