Join the Secret Elves to discover the best shopping deals and things to do this ChristmasTens of millions of Brits now face tougher coronavirus restrictions after the emergence of a new strain – with Christmas plans thrown into chaos.Prime Minister Boris Johnson confirmed the new Tier 4 measures today during a dramatic Covid-19 briefing today.They will be introduced on Sunday morning, December 20, in London and the south-east of England.Johnson said: “I know how much emotion people invest in this time of year, and how important it is, for instance, for grandparents to see their grandchildren, for families to be together."So I know how disappointing this will be.