So many experienced soapers here have a standard recipe. How do you even do that? I've been soaping since September, and I think every batch I've made has a different recipe. I take notes, of course, but it's so much fun experimenting and coming up with all the variations, and then it's weeks, if not months, until you can try your latest recipe inspiration to see if it's as wonderful as you planned, but by then, you have made dozens more batches that could be "the one." So for those that have a standard recipe, or a couple standard recipes, when did you realize certain recipes were "keepers"?