Everyone has a favourite tooth whitening “trick” but this beauty blogger – Farah Dhukai – has a simple one that works wonders.  She simply combines one tablespoon of coconut oil with a pinch of turmeric to create a paste, brushes her teeth with the blend, lets it sit on her teeth for five minutes, then rinses it off for an instantly brighter grin. Be warned, this method will turn your toothbrush yellow.