Scales are actually better for powders (i.e. flour); volume measurements can vary significantly depending on how hard you pack the stuff in.
(Having said that, it seems relevant that my plastic kitchen scale met a sad melty end on top of my toaster oven and I haven't replaced it.)
With Alicorn's permission, I'm resurrecting this thread.
I'll start off with one of my own: What kinds of exercise can I do at home (I do have 5- and 20-pound weights), and what are good ways to get motivation to do so regularly?