Firstly...
I'm constantly being emailed by various networks about their clearance sales and special offers they currently have, so I thought I would share some of them with you, which will hopefully save you some money, while TF could also benefit from it at the same time.
Please make sure you use these links if you plan on making a purchase, so that you can get a better price on your product and so that you are also helping TFs long term future.
If there is a company that you want to use that is not shown, PM me and i'll see if it is possible and whether they have any good discounts or deals on the go.
Ok, firstly i'll post some comparison websites, it's always good to compare, you can save a fortune that way:
Deal Time

DealTime is a leading shopping search engine with over 700 merchants and around 2 million deals on site.
Kelkoo
Kelkoo (a Yahoo! company) is Europe’s leading shopping search engine and 3rd largest e-commerce website. They list over 3 million products from over 5000 retailers.
Pricerunner

Pricerunner is a leading European price comparison website, provides the most comprehensive service in the UK market, listing over 2.6 million prices from over 4,000 retailers.
SimplySwitch

Similar to uSwitch really, but using both sites to see how they fair against each other can cut your bills down even more.
ClickCompare

Banner is not the best, it doesn't really do the site justice. The site itself is an absolute gem. You can compare, loans, insuranc, mortgage, credit cards, phone suppliers, energy suppliers and even bank accounts. Don';t just rush into signing up for stuff, you'll end up paying more than you need to, for what the sake of spending a few minutes making a comparison.
Ebay really does deserve a mention and it kinda fits rightinto it's own category, so...
Ebay

If you don't know about eBay, really you've been living under a rock somewhere.
The latest offers that I find will be posted at the top, otherwise this list should be kept pretty alphabetically:
27/4 Electrical

Check out their special offers and clearance deals section to find some bargains, as well as the main front page which has deals of the day on and the likes.
Amazon
I don't think much needs to be said about Amazon. Always there, always having loads of decent offers and now with even cheaper limit to get free posting. I've used Amazon more times than I care to mention.
Advanced MP3 Players

Check the front page to see their main daily specials, so seriously reduced prices if you look carefully.
Asda

May sound daft, but some of Asdas prices are the cheapest i've seen anywhere for DVDs and some other stuff. don't forget to check out the special offer sections.
Avon

There's some good special offers on the Avon site at the moment, as well as the free gifts if you spend £20 with them.
Bensons World

Check out the section
Bargains Zone, they often have unannounced mini sales on stuff, even though they are cheaper than a lot of DVD and CD places already.
ComputerBooks
Please promise me that if you are planning on buying any kind of computer book, that you will at least check out the price of it here first. Don't go paying stupid money at Waterstones, when the book is almost certain to be cheaper here.
Boots

Not only do they have a fair few online exclusive offers, they also give you extra points for your boots card too. Also, if you are not registered with them, there's a big £5000 prize draw for new members at the moment.
Carphone Warehouse

If your thinking of upgrading, check out the deal of the day section on their website before you go ahead and do it, you will probably get very a pleasant surprise.
CD Jungle

Please tell me you don't pay more than £6.97 for your music CDs any more... Oh and that's before you hit the sale sections.
Co-op Electrical Shop

Just have a look at their front page when thinking of buying something electrical, their special offers literally have hundreds knocked off the prices.
Crocus

This may seem a strange one to include, but for those of you with gardens, you have to check them out, they are a lot cheaper than your local DIY store and they have some great offers on normally too. If only I had a garden in this house...
Currys

While not normally a big fan of Currys myself, their free delivery offer is pretty good and used along side some of their special offers, you could save quite a bit.
Dolphin Music

Check out the price drops section on this website before going down your local music store to buy your music equipment, they've got a few good savings on there.
Dorling Kindersley

The free delivery bit in itslef is nothing special, loads of sites do it now, but you should check out thier 3 for 2 books for Christmas offer, some right good bargains there.
eBags

The prices on there are cheap enough as it is to be honest, but if you check out the Current Offers section, you'll be seriously hard pushed to beat those prices in high street retailers, yes and they offer free delivery too.
eBuyer

What can I say, most will know about eBuyer already and I suspect quite a few will have used them too. In fact, when my TV blew up at the weenend, forcing me to get a new one, it was eBuyer that proved to have the best value and so I just bought my new TV from there.
Empire Direct

One of Empire Directs best features is their clearance section. They sell items missing their boxes or with a tiny bit of superficial marking, for way under normal price.
Game

I'm sure most pepole know about Game already. But you simply have to check out their deals of the week.
GearZone

Read the banner, they aren't telling lies. Not only that though, but they currently have a big clearance sale on too.
GetLenses
This is another one of those sites that currently have a pretty decent sale on at the moment, on top of the actual savings you'd make from high street retailers anyway.
GLTC - Great Little Trading Co.

The prices are good, they have a great range of gift ideas and on top of that, you have the opportunity to win Christmas goodies at the moment too.
Great Magazines

Yes, they are a lot cheaper than in the highstreet. I don't know why anyone would pay full price when you can get it delivered to your front door and for cheaper.
Halfords

There's one main reason to use the online version of Halford, rather than going into their highstreet stores. They are cheaper online and they also have loads of exclusive online offers.
Harrods

Most of us don't have a Harrods nearby, but that really doesn't matter, not only is the online version cheaper than their store, they also have exclusive online offers too. they also have a sale on at the moment.
Hewlett Packard

If your thinking of buying anything made by HP, why not do it direct from their website and save 10% of the price at the same time.
HMV

Under normal circumstances I wouldn't show off about HMV, but when they have a sale on, then i'd seriously say go for it. Save money, get what you want at the same time. They have some great offers on right now by the way.
Ink Factory

This is the only place I get my printer ink from. I've been using them for years. They deliver quickly and for free and they always have some special offer or another on that means I get a bargain.
JD Sports

Firstly, it's free delivery at the moment. Then there is the competition, then there is the cheaper than high street prices and on top of that, they also have a whole bunch of sale items too. In fact, i've just seen a new top I think I may have to have in there myself, it's so cheap it would be rude not to.
Jessops

What more needs to be said, there's 10 percent off everything with the special code, but not only that, their clearance section offers even better deals.
John Lewis

They currently have a good offer on wine and if your thinking of stocking up for Christmas, why not take advantage of the offer, just use the discount code in the banner.
Just UK

This is one for the ladies. To get 5% off an order, type 005 in the prmotional codes box. Swiss quality, i'm sure you know how I feel about Swiss produce, so that in itself should give you an idea about this stuff.
Kitbag

Just click on the sale section and drool at some of the prices of their sale items...
Knickerbox

I can see all the pervy males clicking on this one. hehe. Lads, just make sure while your there, you are buying sexy underwear for your girlfriend or wife for Christmas, check out the clearance section for bargains.
LaSenza

This is a great sale, pretty much 50% off loads of items, another one of those sites that would be great for finding christmas pressies.
Links of London

This is a company more about style and class than bargain hunting. But guess what, if you look around their site carefully, there are some genuine bargains there too, but the beauty is as said the main appeal here.
Littlewoods

Read the banner. They also have a nice range of clearance items too.
McAfee

We all need firewall and virus protection on our computers and we all ned to keep our software updated. Why not save 20% when buying the software...
Micro Direct

As the banner says, Deal of The Day. If your thinking of upgrading, check out that section before going elsewhere.
Misco

Great for computer equipment, accessories and various stuff like that. Some great prices available. Do the competition, i'd love it to be someone from TF that won it.
MusicRoom

Check out the special offers page. 20% off pure tone music stands and guitar accessories, free music landmark books, 25% off Omnibus and Sanctuary books and various other offers.
My Memory

They sell pretty much nothing but memory, for computers, phones, cameras and any other memory you could think of, just look at their front page for some great special offers.
Newitts

Seriously, please go and look at their front page. We are talking reductions from £20 down to £2 on some of the stuff in their clearance sale, all sales should be like this.
NikeID

They have a set of exclusives on the website, I couldn't find any clearance or sale section, but i'm sure anyone wanting NikeID would want to visit the site anyway.
Opodo

It's been so long since I had a holiday, that i've no idea what constitutes a holiday bargain, but they are offering various special deals.
Panasonic eShop

Check out the special offer page for a few real good deals. I'll try and find some promotional codes to make better savings for them too.
Partsmaster

I think this website is absolutely genius in a way, instead of having to replace an expensive bit of equipment, you can buy spare bits, you can also find all the accessories that go with your epuipment there.
PC Next Day

I hadn't previously heard of this company until I started doing this, but I am glad i've found it and I think some of you will be too, if your not sure what I mean, check out their clearance sections.
Pet Planet

This is one site I actually frequent quite regularly myself, it has loads of great information on it, some great items for sale and some great prices too.
Play.com

I really don't think I need to say much about play.com their prices and reputation speak for them, of all the DVD sites out there, this is my personal favourite.
Pricestorm

Hmm, this is another company i'd not heard of until doing this thread. Having checked out their website, I get the feeling I may be seeing a great deal more of it.
Reebok Store

There are some very good products on this site and some really good prices. I couldn't find a clearance section, but i'm sure there is one there somewhere.
Robert Dyas

You only need to go to the front page of their website to see some amazing offers on various household items and they have a special web only special offers section too.
Route One

Just visit the site. Trust me on this one, it is one of the best and coolest fashion stores there is.
Rymans - The Stationer

Hmmmm, stationary... Am I being weird here or does everyone get a nice tingly feeling when looking at stationary, especially when it's reduced and a bargain?
Sainsbury's

This site has more offers on than I have space to mention to be honest. It's not the type you'd use every day obviously, but when the time comes to upgrade your white goods and cooker and the likes, make sure you stop by and check their prices out, they will probably have what your looking for at a really good price.
Skype
The banner itself shows one of their many offers. Anyone with an internet connection and landline, who makes regular land line calls, either nationally or internationally, should really consider swapping over to Skype, you could save yourself a heap load of cash.
Tesco Direct

Tesco is already the single most used highstreet supermarket because of it's good range, quality and prices and their website shares those same traits. Cheap, quality and reliable. TF also already has a couple of regular shoppers, via their web, who i'm hoping will use this link now it's in place.