Here in the UK, it's quite a new thing and a week beforehand stores and websites are getting ready. Many are offering previews to those who have signed up for newsletters and also those who are loyalty card members. In addition Quidco and Topcashback are vying for customers offering £2.50 back on top of cashback for purchases over £5. You must click to activate this offer and is limited to so many members only, so click to activate just in case. Once I didn't and it had reached the threshold of members activating the offer. You may get an email telling you to activate, but if you check on the home page it will tell you of the offer and how to activate it. I have found the emails have been arriving late recently, so best to check on the site itself. I've already been told of some previews and deals, so it is worth signing up and making sure your account is up to date for an easy check out.