The Outlet Discount Finder tool can't currently get data from some of them, but we're working on it, and in the meantime we've provided links.
Plus, if you're going to stick to brand loyalty, see the Hidden Brand Secret Sales guide for tricks on slashing the cost of designer goods. If you like the tool, you might also be interested in our Amazon Discount Finder and Local eBay Deals Mapper.
Some clearance stock can be cheaper in-store but the range on Argos's Clearance Bargains* makes it worth a look.
Most products it sells are new, and where items are refurbished, they're clearly noted. It's also worth checking Argos's in-store Clearance Finder* which allows you to find bargains available in-store.
As well as its eBay offering, Argos* has thousands of discounted items in a dedicated clearance section on its own website. But unlike the eBay outlet, you can reserve items to collect in-store.
Brand Prix is an online only clearance site flogging a huge range of big name fashion and beauty brands.
Grab discounts of up to 80% off original prices on Diesel, Prada, Paul Smith and dozens more.
Distinctive shoe brand Crocs* offers a good mix of adults and kids' shoes on its outlet. What's more, sometimes there's extra multi-buy discounts available on top of clearance prices, so buy two pairs of shoes and get second pair half-price.
Almost all the stock sold by computing giant Ebuyer* is ex-display, so some will be in less than perfect condition. With some, there's just one of each item. Choose from TVs, hobs, laptops and much more.
In a few cases, it’s actually cheaper to buy new, as stock may have been in the outlet section for a long time, so do check.
The outlet arm of Figleaves* has a vast range of men's and women's undies and night wear, with a striking range of undies and other smalls.
Since items are quite pricey to begin with, stock sold on the outlet arm of women's clothing site Hobbs doesn't come cheap. However, with discounts of up to 70% on a good mix of previous season's stock, there's still potential for a bargain.
With a HUGE range of heavily discounted clothes and home items up for grabs, House of Fraser*'s outlet is well worth checking out - there are currently over 3,000 discounted items.
Independent jewellery retailer John Greed* sells brands such as Pandora, Thomas Sabo and Links of London at discounts of up to 80%.
Popular bag brand Kipling offers up to 40% off a range of handbags, suitcases, laptop bags and more at its official web outlet.
Even after the discount, the prices remain high, so exercise MoneySaving caution.
Even after discounts of up to 50%, L.K. Bennett outlet are still seriously pricey so make sure you shop around.
Buy online via M&S Outlet* to get discounts as standard of up to 50% off the usual store prices of men's, women's & kids' clothing, as well as homeware.
Beware of returns! As delivery is run by Amazon, you won't be able to return your items in-store to any M&S shop or M&S Outlet.
There's a smattering of discounted women's clothes, shoes and accessories in Monsoon*'s outlet store.
At the Mothercare outlet*, there's up to 70% off clothing for babies and children up to the age of 8, as well as maternity wear for mums-to-be. What's more, there are big discounts on high-chairs, prams, cots and toys too.
With a collection of both its own and branded shoes, the Office* outlet ranges from sporty to designer and offers sizable discounts on brands such as Converse and Vans.
The outlet arm of outdoor and sports brand Regatta sells its gear with up to 75% off original store prices.
There's a good range of men's, women's and kids' hardy coats and waterproofs, as well as bags and accessories. It's not so strong on the hardcore outdoors gear you'll find in its stores, but the every day winter wear is competitively priced.
No prizes for guessing what's on offer at the Shoeaholics* outlet - shoes, shoes and more shoes. Set up by Kurt Geiger to shift out-of-season stock, you'll find up to 75% off a range of both men's and women's shoes.
Like its eBay arm, the Shoeaholics web outlet is packed with shoes, shoes and more shoes. It also flogs out-of-season Kurt Geiger stock, with the same discount of up to 75%, so if you can't find what you're looking for on the eBay outlet, give it a try as well.
There's a decent range of outdoor gear on the Snow and Rock outlet.
Most of the products are high-end, professional equipment for the more handcore outdoor activities and sports.
With tens of thousands of items on its eBay outlet, Sports Direct* boasts one of the most comprehensive selections of all the outlets.
Grocery juggernaut Tesco* is not so far from Argos with its eBay offering, but has more emphasis on homeware and electricals.
It sells both new items and customer returns and all refurbished items are clearly marked. Unfortunately, you can't collect Tesco Clubcard points via Tesco outlet.
TK Maxx has some last-ditch clearance stock online. Items come and go very quickly and stock is limited. Just like when you go in store, it's a total lottery, but that's half the fun.
From kids' clothes to women's evening wear, there's a vast range of discounted stock on the Very Clearance* outlet.
High-end women's brand Whistles* offers a good range of smart and smart-casual wear. There's often a good range of sizes available on items too, which isn't always the case with outlet sites.
Seriously pricey Yoox* offers clearance stock from a massive number of designers, incl Diesel, Paul Smith and Prada. While it isn't officially an outlet, the reduced prices on stock from many previous seasons means it's in keeping with the outlet spirit. Keep your eyes peeled for designer sample sales too.
Get all this & more in MoneySavingExpert's weekly email full of guides, vouchers and deals
GET THIS FREE WEEKLY EMAIL Full of deals, guides & it's spam free