For Black Friday shoppers, the advice of Money Saving Expert Martin Lewis is invaluable.
While some deals only seem to good to be true, others are - and some items will become cheaper in a few weeks when the Christmas sales hit.
As a result, many people turn to the finance journalist to find out which deals are really worth spending money on, and which to avoid.
Here's Martin's full list of Black Friday and Christmas sale deals to look out for, according to Cambridge News:
November 16 - November 22
- Tesco: 25% off 6 bottles of wine over Black Friday weekend
- Debenhams: up to 50% off for about 2 weeks
- Baileys: £10 Baileys in supermarkets for about 4 days
- Selfridges: 20% off for about 2 weeks
- Ikea: Buy £29 real Xmas tree - get £20 voucher, until Xmas eve
- Amazon: Lightning and daily deals for about 10 days
- Sanctuary: Boots half-price Sanctuary Spa 'Star Gift' set
November 23 - November 30 (Black Friday deals)
- Apple: Free gift card with big purchase for Black Friday weekend
- Argos: Free voucher with purchase for about a week
- Asos: Up to 70% off everything for about 5 days
- Benefit: 20% off code for Black Friday weekend
- Ted Baker: Half-price 'Star Gift' set at Boots
- Dyson: Daily deals until Cyber Monday
- eBay: Daily discounts and price matching for about 10 days
- French Connection: 30% off for a few days
- Game: PS4, Xbox and Switch deals for about 5 days
- Gap: 50% off everything for about a week
- H&M: 20% off for a couple of days
- Illy: 50% off Illy coffee machines for about 10 days
- John Lewis: Discounts for about a week
- Kurt Geiger: 20% off for about a week
- M&S: 30-50% off beauty etc. for Black Friday weekend"
- Matalan: Up to 50% off for about a week
- Ralph Lauren: 20-30% off select items for Black Friday weekend
- Ryanair: Seat sale for Black Friday weekend
- Sainsbury's: TU 25% off sale for about a week
- Disney: ShopDisney 20% off for 3 days
- TalkTalk: Fibre broadband for £21 a month
- Topshop/Topman: 25% off everything for about 6 days
- Urban Outfitters: Up to 50% off for about 5 days
December 1 - December 6
- Office London Theatre: £10-40 West End theatre tickets
- American Express: Amex £5 cashback at local shops for about 2 weeks
- Soap & Glory: Half-price 'Star Gift' set at Boots
- Topman: At least 20% off everything for 48 hours
December 7 - December 13
- Royal Mail: Free Santa letter (deadline Dec 11)
- The Body Shop: 40% off most items for about a week
- No7: Half-price 'Star Gift' set at Boots
- Kurt Geiger: Up to 50% off sale
- Miss Selfridge: Up to 50% off sale - likely to boost to 70%
December 14 - December 20
- Supermarkets: 15p Christmas veg (supermarket price war)
- Asos: Up to 60% off - likely to boost to 70%
- British Airways: January sale until Jan 30
- EasyJet: Up to 20% off flights until Jan
- H&M: Up to 50% off sale - likely to boost to 70%
- Ikea: Up to 50% off
- John Lewis: 30% off Christmas decorations
- M&S: 30% off Christmas decorations
- Topshop/Topman: Up to 60% off - likely to boost to 70%
- Virgin: Virgin Atlantic winter sale
December 21 - December 25
- Argos: Up to 50% off for a couple of weeks
- The Body Shop: Up to 50% off for a couple of weeks
- Boots: Up to 50% off
- Debenhams: Up to 50% off
- John Lewis: Up to 50% off
- Matalan: Up to 50% off - likely to boost to 70%
- M&S : Up to 50% off - likely to boost to 70%
- Next: At least 50% off for a couple of weeks
- Travelodge: 30% off selected stays for a few days
December 26 - December 31
- Amazon: Up to 50% off from Boxing Day
- Asos: Up to 60% off - likely to boost to 70%
- H&M: Up to 60% off - likely to boost to 70%
- Mulberry: Up to 50% off
- Ryanair: 500,000 seats from £9.99 for a few days
- Topshop/Topman: Up to 60% off - likely to boost to 70%
January 1 - January 3
- Carluccio's: 2 for 1 for £1 voucher for a few weeks
- Debenhams: Up to 70% off
January 4 - January 10
- Eurostar: £58 return (Jan-Mar trips)
- M&S: Up to 50% off - likely to boost to 70% off
