It's not everyday that Amazon discounts its own hardware products but today as part of their Black Friday Sale, they have added savings onto both the Kindle Paperwhite and Dash Buttons.

Kindle Paperwhite 6" E-Reader [27% Off]

Amazon has almost exclusively dominated the e-reader market with their Kindle e-reader. The Paperwhite is the most popular of the range - with more features than the entry-level Kindle but at only a marginally higher price.

A Kindle isn't just great for reading e-books - you can save websites and articles to read later on your Kindle along with plenty of other great ways to get the most out of the device. A Kindle is a great investment, even if you love real books.

Amazon has discounted all the Paperwhite Models, with the entry-level model with Wi-Fi and Special Offers (ahem - ads) 27% off, all the way to the ad-free Wi-Fi and 3G model at 17% off.

Amazon Dash Buttons [80% Off]

Amazon's Dash Buttons are Wi-Fi connected buttons that allow you to reorder products with one tap. Most major brands are covered including Ariel, Finish, Gillette, and Andrex.

Normally the buttons cost £4.99 each and when you place your first order you receive a discount of £4.99 - making the button effectively free. Today the buttons are reduced to £0.99 but you still receive the £4.99 discount on your first order.

It's hard to argue with saving £4 to add something useful to your home. Plus, if you aren't sold on the idea of just ordering products from Amazon with the buttons you can always hack them into awesome Internet of Things Smart Home buttons.