Legions of spa-goers sing the praises of facials, but dermatologists claim the treatments are better for relaxation than they are for your skin. This quiz won't tell you who's right, but it will give you some ideas of what to ask for the next time you're in the spa -- and what everyday ingredients you can use on your face if you're short on cash.
How much do you know about how car engines work? And how much do you know about how the English language works? And what about how guns work? How much do you know? Lucky for you, HowStuffWorks is about more than providing great answers about how the world works. We are also here to bring joy to your day with fun quizzes, compelling photography and fascinating listicles. Some of our content is about how stuff works. Some is about how much you know about how stuff works. And some is just for fun! Because, well, did you know that having fun is an important part of how your brain works? Well, it is! So keep reading!