Cast iron skillets have their uses. Some good, some not so. Ever make the better half mad, and I mean real, real mad, mad enough where she reaches for her biggest, heaviest cast iron skillet and then suggests that you lay down and take a nap while pointing the skillet at you, best not lay down and take a nap or you will find out a bad, bad, real bad use for a well seasoned cast iron skillet. Now on the other hand, say you are changing the oil in one of your tractors and you need something to drain the old oil out into, and the better half's biggest cast iron skillet just happens to be within reach, well, then you will have just discovered another one of its good, good, real good uses. Problem is that if the better half finds out that you used her biggest, best cast iron skillet for changing the motor oil in your tractor, well, she's liable to point it at you and suggest that you lay down and take a nap facing the back of the sofa, and she may suggest that you put your dirty shoes up on it while you're taking your last nap in this world ever, so don't.
Good luck and be careful. Cast iron skillets can be very good, and very, very, very bad, often depending whether there is a full moon or not. We don't have cast iron skillets in my house. As a matter of fact, they are banned because I'm a man and as a man, I make the kind of mistakes that sometimes get me invited to just "...lay down and take a nap". I've learned my lesson to never take naps when they aren't my idea either about the same time cast iron skillets got banned in my house.