Answer out loud before looking back.
One. Why did the extra customer used to be free, and why is it not now?
Two. What is the pattern behind cheap pricing on a new platform, and how does it usually end?
Three. Why does measuring consumption produce waste rather than productivity?
Four. What has to exist before you can sensibly route work to a cheaper system?
Five. Why do people overspend when they move from a flat plan to metered access?