It's days like these -

[desperance]

- when I find that none, not one of the three clever electronic scaleses in my house is working - that I finally understand why Americans measure quantities by volume. For lo, all my cups are working!

Also, I have found a convenient conversion chart on the internets, which boasts of its accuracy: it tells me that one pound of flour is 1.981 cups. I'm not sure I have a .001-cup measure...