We've been told countless times that the key to stay-in-place makeup is a good primer and setting spray.

However, it can be hard to shell out for these luxury products that we're still not SURE we see results from. Well according to Women's Health, we already have the perfect setting tool in our makeup armour - our blowdryer. Celebrity makeup artist Susan Heydt explained to the magazine that the hair tool is a brilliant and cost-effective way to set your smack, but warns that the heat setting needs to be low. She said: “Although using a blow-dryer to heat up eyelash curlers and dry off skin works well, you’ll need to use a very low heat setting and have good environmental humidity to avoid causing skin damage. “Youthful skin would definitely be a prerequisite for this type of setting process, as not too many women with mature skin would want to dry out their face any further.” We probably wouldn't rely on this one full-time, but handy when funds are low!