Butter - I buy imported Kerrygold butter (Irish) that comes in sticks. Probably packaged just for us difficult Americans. Are British packaged of butter labeled in knobs?
I have liquid cup measures (Pyrex) and dry cup measures (Calphalon, I just checked). Flour, cornmeal, sugar...I don't measure those in the Pyrex. Actually, I usually weigh the dry stuff, as I pretty much have it committed to memory how much a cup of this or that weighs, and I can usually do the math in either direction to get to whatever amount I'm after.
I started working in a retail operation at 9yo, cash or check only, and worked there for 10 years. I can make change in my head nearly as fast as the register.