Almost a quarter of consumers are unsure if their old energy supplier owes them money. Some leave old suppliers with as much as £300 credit it.
The CMA reveals that 95% of those on a standard tariff from one of the Big Six energy suppliers can save between £158 and £234 a year on their energy bills.
Which? tries out new upright vacuum cleaner from Dyson, the Cinetic Big Ball. Get our first look verdict to find out whether this Dyson vac is worth buying
Whether you have a gas or oil boiler Which? reveals the most common boiler faults and reveals how to minimise the chances of costly repairs.
Will the EU delay the effective ban on halogen lighting until 2018? Find out about the debate surrounding the legislation and the arguments for and against.
Which? has tested 38 vacuum cleaners that carry the EU energy label and found that ratings on some labels bear little relation to how well they can clean.
Whether you are after a new gas combi boiler or an oil boiler, Which? reveals how choosing the right boiler brand can minimise costly boiler repairs.
Three scientists integral to the move towards domestic LED lighting have won the 2014 Nobel prize for physics.
Which? tests dehumidifiers for water extraction, efficiency and more and reveals the best and worst dehumidifiers from brands including Blyss, Ebac and Dimplex.
Buy now if you're looking for a powerful vacuum cleaner, as new energy rules about to come into force will restrict the motor sizes of vacuums available to buy.