If I wrote the laws:
1. First offense- $500
2. Second offense- DL suspended 3 months
3. Third offense- DL suspended for 5 years, and at least a month in jail.
Harsh? I don't think so. Driving is serious business, and you can kill people too easily with a car, just because you think you are so special.
This, with a few tweaks, is where I'm at, too. In my opinion, instead of being so worried about why people are driving like buffoons, let's just tighten down on the buffoonery. Forget checkpoints and radar guns and looking for cell phones in the car. The person you kill is no less dead because you were telling your kids in the back seat to stop fighting or just being an aggressive jerk than if you were texting your friend.
The first time you're caught doing something dangerous (crossing the yellow line, cutting somebody off, slamming on the brakes, tailgating, swerving between lanes, rear-ending somebody at a stoplight, running a red, speeding well beyond ambient traffic flow, etc.), $1000 fine + a 3x multiplier for being drunk and a 2x multiplier for being on your phone. Second time, 1 year DL suspension, 1 month jail, $5000 fine, plus the multipliers (to both the suspension and the fine). Third time, you're no longer welcome to drive in that jurisdiction, ever again. Add to that 6 months jail and some prohibitive fine.
In my opinion, traffic law enforcement needs to be less focused on which of the car's have burnt out lightbulbs and more focused on sending a very strong message to those people who take advantage of the attentiveness of their surrounding drivers.