I speed. Constantly. I just zone out, I commute so much, I just turn autopilot on in my brain and suddenly I'm at work... or pulled over on the Interstate. I'm well on my way to having my license suspended, regardless of my otherwise generous and defensive driving habits.
Anyhoo, I don't have any use for the speedometer in the Waze app, unless it could alert me when my car surpasses a certain speed that I can set myself. If I heard an alert chime every time I hit a certain speed, I bet I could learn meself some control. Is anyone else interested in a feature like this?