Martin Lewis, 45, appeared on Good Morning Britain today to share his deals of the week.
He revealed how Britons could now save over £100 on their British Gas bills thanks to a new energy tariff.
Martin explained: “British Gas have today launched their cheapest dual fuel tariff.
“Someone on typical usage would spend £1100 a year, whereas with this one it is £995 a year.
“However you can’t get directly from British Gas, as it is only available on a comparison site.
“So if you want it you are going to have to sign up to a comparison site to get this deal.”
However, Martin bemoaned the fact “60 per cent of people are still on their standard tariff”, and urged viewers to make the move.
He said it was a “no brainer”, as “you just pay less for what you are getting”.
Martin also revealed an amazing trick for viewers to get a bottle of prosecco for just £1.50.
Martin explained: “The deal is on at Sainsbury’s for new buyers online.
“Six bottles of Prosecco Frizzante is £6 a bottle, and right now until Monday if you buy six online you get 25 per cent off. This works out at £4.50 a bottle.
“New customers can then use code SCSSEONOV18 to get £18 when you spend £60. Do your normal shopping, and this then works out at £1.50 a bottle.”
Martin explained the mechanics of the deal in detail, and said: “So it’s £27 for six bottles, so you’d need to spend £33 on groceries to reach the £60 minimum spend.
“Then with the £18 off, it’s £42. As you’ve spent £33 on normal groceries, it’s £9 for the six bottles of prosecco, or £1.50 per bottle (plus delivery if you can’t pick up in a store for free).”
Martin also advised viewers to make sure their substitutions settings are correct to avoid any surprises.
He said: “If you only want the cheapest prosecco or champagne, make sure you untick the box which says ‘allow substitutions’ when you order, as that way if it’s not in stock, you’ll just get your groceries, not a pricier bottle of prosecco.”
For more information from Martin about the British Gas deal and to compare energy tariffs, click here.