Sweating it out on the rowing machine is a great cardio workout, and unlike the treadmill, it's usually sitting empty so you can hop on and get working at any time. Added bonus: the rowing machine also works the upper back, arms, legs, and, yes, even
Treat it right, and cast iron cookware will last you a lifetime. Literally. In fact, you really can't ruin it forever; it might take a little elbow grease and some patience, but there's always a way to bring it back to life. The real key to making cast iron stand the test of time (and cooking) is knowing the best ways to clean and maintain it.