You're getting ready for a holiday party. You're in the shower, hair slathered with conditioner; you decide to shave your legs while the conditioner does its magic. Oops - you're out of shaving cream.
Hair conditioner is not just great at keeping your lovely locks smooth. Slather it on your legs and shave with it, as well. The lubricants in the conditioner will soften the follicles on your leg hair, making for a smooth, close shave.