What I've observed is that people don't really keep track of what they are spending. I like to set up weekly newsletters that show costs and also if there has b

What I've observed is that people don't really keep track of what they are spending. I like to set up weekly newsletters that show costs and also if there has been a decrease or increase. In bigger corps, you also should have team based tagging of resources so that specific teams get exactly what they are spending. At the very least, managers will look each week and be like "why did costs increase this week? What's going on?" even if the engineers don't care. "What's get measured gets managed" as they say.