Hey Brigid, Rach Anderson here.
Where would you say the weirdest place inspiration has hit you is? For me in the middle of work while mopping a floor in an aged care facility.
I get hit with inspiration in the most bizarre places -- but it's usually when I'm doing something physical, so I can relate to you finding it while mopping a floor. Manual labor is great for getting your brain to disengage and kind of "float," and I think that's when the best inspiration hits.