You love your spa days and girls' nights out but with everything you cram into your life, it's time to find a more explosive release. Discover your inner girl power with this deal from World Class Karate: Pay $20 for 20 45-minute kickboxing classes for women (regularly $400). Located in Port Credit, this Japanese Karate Association-affiliated dojo designs these interactive classes to teach you and your classmates the basics of karate -- like sharp kicks and one-two punches -- while burning calories via a demanding workout. But don't be alarmed, every upper cut and jab you throw will be performed with proper safety gear and under the watchful eyes of trained professionals like the world-renowned sensei Ray Tio. Forget lounging roundhouse, gather your crew and hit the mat to work out something fierce.Want more? Check out World Class Karate on Facebook.