Why type of cook are you?
Do you slavishly follow every single step and detail of a given recipe and would otherwise feel lost without all the measurements, ingredients, and preparation steps laid out before you in a nice, neat piece of paper?
Do you use a recipe merely as a guide, but when it comes time to put oil to pan (as the case may be, or water to flour, etc.) do you let your own intuition and innate culinary compass be your ultimate guide?
I'm more of the latter. The only time I've ever really needed a measuring spoon was for cough syrup ...