Popular items this Christmas included:
- Earmuff headphones - improving figures for electrical retailers
- All-in-one-pyjamas known as "onesies" - boosting clothing sales
More top news
Unresolved complaints about energy suppliers could be five times higher than official figures suggest, according to Labour.
Toys R Us has scrapped its four collectible dolls based on the characters of the hit TV series Breaking Bad after a campaign by a US mother