Our year-long investigation tracked the prices of popular products across major retailers to find out when it's really a good time to buy
Britain’s biggest supermarket Tesco has announced it is launching a new chain of budget stores, called Jack’s. The new chain will offer a small number of unique, low-cost, own-brand lines....
Which? members share the most ridiculous examples of oversized packaging that they've received from online retailers, including Amazon and Lifestyle Labs
The Advertising Standards Authority rules that Amazon shoppers were 'misled' by its promise of one-day delivery during last year's Christmas sales period
We've investigated just how much plastic supermarkets use, and reveal what you can do to reduce your plastic footprint
If you're looking to cash in your Tesco Clubcard vouchers, this could be the weekend to do it. Find out more about the change to Tesco's Clubcard voucher scheme.
Lush, Savers and Smyths Toys top the rankings of our annual customer survey while WHSmith finishes at the bottom of the pile, amidst trying times for the UK retail industry
Millions of householders could be exposed to danger thanks to dodgy safety advice given out by some of the UK’s biggest retailers and Whirlpool. Our undercover investigation used mystery shoppers...
Which? investigates the cheapest place to buy a typical basket of grocery items in February 2018.
Morrisons tops the list to become the cheapest supermarket for January 2018, in a monthly price comparison round-up from Which?