Martin Lewis, 45, appeared on Good Morning Britain today to share his deals of the week.
Prosecco is extremely popular at this time of year, and Martin revealed how to get a bottle for £1.50 in time for Christmas.
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.”
Martin also shared some other quick deals to snap up this week, including a trick to get a Soap & Glory – perfect as a Christmas gift – at a discount.
He said: “From Fri 8 Dec, if you go online to Boots or visit one of its stores, you can get a Soap & Glory ‘Spa of Wonder’ body care set for £30 until 11.59pm on Thursday 14 Dec.
“This gift set, which includes body butter, face wash and mascara, is normally £60, but if the products were bought individually they would cost £78.”
Martin also told viewers about an amazing and little known way to save big on their British Gas bills.
He said: “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.”