MySweetSmile’s Black Friday sale is the perfect excuse to upgrade your smile

You could have whiter teeth by the weekend, let alone Black Friday. (Picture: Metro/MySweetSmile/Getty)

Metro journalists select and curate the products that feature on our site. If you make a purchase via links on this page we will earn commission – learn more

Black Friday is no longer a single day of deals any more, it’s now a month-long marathon. If you go in without a plan, you’ll end up with a basket full of things you didn’t need. 

This year, Black Friday falls on November 27, with Cyber Monday on November 30, but many brands and retailers start cutti...