You just spent the price of a short holiday on a bottle of Louis Vuitton Symphony or Tom Ford Rose Prick, and no sooner do you spray some on, but the scent is already fading. Perfume doesn’t come cheap, so it pays to know how to make sure each of the those pricey droplets lasts. There are numerous tips on TikTok, Instagram and elsewhere for perfume – and one is that you can use a dab of Vaseline to prevent fragrances from evaporating too quickly. This trick truly works. Apply a thin layer of Vaseline or other odourless body lotion to your wrists and neck. Then spray on your fragrance. That lay…