While cooking, I would say that I don't measure anything. But on pondering the issue, I do usually have some general container that I use to estimate rice/water ratio. As most have said, while baking I usually measure (except for yeast breads) but often I find myself wishing my tools for measuring were more precise: If i'm using a liquid pyrex measuring cup, but I want only 3 ozs. of liquid, or when my electronic scale which seems to measure 1 grm of something, as "1" until it appears to be 1.76 grams and then it will shift up to "2" on the readout. (Of course I'm only guessing on this because I have no way of measuring this properly) So by the time I have decided that I am not concocting a precise thing, I am adding and subtracting amounts and ingredients at will. So I like to use measuring for guidance but given that ingredients can vary and recipes are sometimes screwy anyway....... might as well just wing it most of the time. It's more fun anyway.