We are all familiar with 14th February- a day infamously dedicated to the celebration of love, romance and couples. But one day that you may not be aware of is National Singles Day- a Chinese phenomenon that will be celebrating its 8th year on 11th November. Teeth whitening maestros, TINT LDN, are fully embracing this championing of singledom by throwing their own BSFFL day (that's Best Single Friends For Life) on the 11th of this month. As such, I've got two of their teeth whitening sets to give away for you to try out along with your bestie to make the day even sweeter!