In addition to in-store deals, many retailers are also offering massive online sales, some of which are already happening.
iPads, Macbooks, and iMacs are a Black Friday favourite and should be available from major retailers. This includes Amazon, which have a tonne of video games on offer at reduced prices. It found 87% of the items were cheaper at other times of year and almost half were cheaper in the six months after Black Friday.
Black Friday, a day of pre-Christmas discounting borrowed from the U.S., is officially on 23 November, but several major retailers including Amazon, Argos and Currys PC World have already begun their sales campaigns.
"With Cyber Monday, we've noticed that it's kind of morphed into a extended Black Friday weekend because in stores a lot of the deals are recycled", says Phillip Dengler, head of editorial and content marketing at BestBlackFriday.com, another deal-spotting site.
Sony's Cybershot Superzoom camera (left) was advertised as £189 with a claimed saving of £10 on Black Friday by Currys PC World but was also £10 cheaper at least 27 times before the sales event and 43 times after.
One of the most widely accepted - and positive - versions is that traditionally, retailers would operate at a loss for the majority of the year (being "in the red"), but earned a profit (go "into the black") on the day after Thanksgiving, a reference to the actual colors that retailers would use to denote profits and losses when doing their accounting, according to History.
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We looked at 59 deals from Currys PC World, 18 deals from Amazon, 14 from John Lewis and three from Argos. 36% could be found at the same price as on Black Friday at other times of the year.
An Argos spokesperson said: 'During Black Friday our customers benefit from a huge range of deals on a wide range of products, all at the same time. It said: 'While our prices - like all retailers - can fluctuate throughout the year, we're proud to offer our Price Promise across our entire range - and this covers the Black Friday trading period'. This does not exclude these products from other promotions'. A John Lewis spokesman said its Never Knowingly Undersold pledge means it cuts prices to match competitors.
If you need to buy something, always make sure you've done your research and checked product reviews first.
That makes a lot of sense, showing in the United Kingdom that there is still appetite for further shopper discounts in the January sales on certain items, despite them getting a Black Friday reduction.
"Another TV, the 49" LG 49SJ810V TV was £599 on Black Friday from Currys PC World previous year, but it was £20 cheaper from the end of December to mid-January, and again in April.