Idiom
grist for someone's mill
Theme: POTENTIAL
something that can be put to good use or that can bring advantage or profit. (Grist was corn brought to a mill to be ground and so kept the mill operating.)Some of the jobs that we are offered are more interesting than others, but each one is grist for my mill.The company is having to sell some tacky-looking dresses, but they are grist for their mill and keep the company in business.