Coffee, tea, red wine and smoking (cough, cough) are all causes of yellow teeth.

Teeth whitening and specialised toothpastes are both wonderful options, but here’s another little trick to make your pearlers look, well, pearlier.

Straws, and no, not the kind you find in a barn, the kind you find at the bar or in those rather unhygienic dispensers at McDonalds.

By popping a straw in your tea or coffee or wine (sorry, it doesn’t work for cigarettes, perhaps you should just kick that habit instead) you’re actually stopping the liquid from going anywhere near your teeth, and therefore, stopping your teeth from getting stained.