I've seasoned my cast iron skillet only once, when I first bought it. I wash it in hot water with very little bit of dish soap. If needed I use metal scrubber. Never soak a cast iron skillet. Actually the only thing I cook it is meat. A small cast iron skillet is used for cooking only eggs. That one is never washed, only scrubbed and rinsed with hot water. Amazing how little oil or shortening I have to use on that skillet. I do use oven cleaner only on the outside to remove greasey buildup. This I learned from my parents and have had my skillets for 47 years. If food stick to your skillet, preheat with oil or shortening, then add food.