Martin Lewis has explained that shoppers can get a 'free boost' on their Clubcard points - but they need to act quickly.
The financial journalist warned that those with Tesco Clubcards only have a short time left to save money when using their cards.
Speaking on his namesake ITV show, The Martin Lewis Money Show, he said that anyone with a card only has until Wednesday, October 20 to claim the reward.
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He said: "Now, do you do your Christmas shopping at Tesco? This is your last chance for a free boost.
"Basically the Clubcard Christmas Saver Scheme - you must top it up by next Wednesday."
The MEN reports that he went on to explain: "What you do, you pay into it and it gives you vouchers to spend in store - but it adds six percent on top.
"So if you know you're going to be spending in Tesco for Christmas you may as well charge that up before next Wednesday and put £200 in and you'll have £212 and it's a little bit of a boost.
"Merry Christmas."
Also on the show, Martin Lew is issued a warning to everyone with car insurance.
He told people to consider switching their car insurers now as he said price changes were due to come in.
He revealed insurers could make a big change to the prices of policies "in a few weeks."
