You have just days left to post your Christmas cards if you want to make sure they get delivered before December 25.
Last posting dates were brought forward in light of strike action by Royal Mail staff and Brits have been urged to send their Christmas cards as soon as possible to avoid any delays.
The Communication Workers Union called on its members who work for Royal Mail to collect, sort and deliver parcels and letters to take part in industrial action on December 14, 15, 23 and 24.
On strike days, services will be limited and letters or Door to Door mail will not be delivered, Royal Mail said.
Today (December 12) is the last recommended date people are advised to post 2nd Class, 2nd Class Signed for and Royal Mail 48 Christmas cards and parcels to ensure they arrive in time for December 25.
But if you cannot get to the post office in time today, you still have until Friday, December 16, to post your cards and parcels using 1st Class, 1st Class Signed For, Royal Mail 24 and Royal Mail Tracked 48.
While it is not recommended to wait until next week, the Royal Mail website says you can still use Royal Mail Tracked 24 up until Monday, December 19, to ensure your post arrives by Christmas Day.
The website adds that with Special Delivery Guaranteed until Wednesday, December 21, your cards and parcels can still be delivered in time for the big day.
It comes after reports warned that Christmas cards may not be delivered until February due to usual seasonal backlogs worsened by strikes.
Mountains of post have already been pictured outside Royal Mail centres due to industrial action and that was before a fresh walkout by 115,000 posties on Friday.
An insider told The Telegraph : "The back-up of the post is really bad. Royal Mail is focusing on parcels and there is not a lot of room in the model for letters.
"Christmas cards will likely be very late with some certainly not arriving until February."
The country is set to be hit by a wave of strikes over the coming weeks as Royal Mail staff, nurses, paramedics, rail employees and Border Force officials all stage walkouts over jobs, pay and conditions.
Military personnel and civil servants are being trained in case they are required to be drafted in at ports and airports, as border staff prepare to strike for eight days from December 23 to New Year's Eve.
Armed forces members will also be deployed to hospital trusts across the country to prepare to man vehicles ahead of an ambulance strike scheduled for December 21, with a significant number of military staff now expected to miss Christmas breaks.
