Be a conscientious driver: Always wear a seat belt, even for a very short drive, and never ignore stop signs and red lights. Never drive when sleep-deprived or after drinking. Do not allow yourself to be distracted, like chatting or texting on a cell phone when you are behind the wheel. If you feel impaired or distracted in any way, pull over until it is safe for you to continue driving.
Quit smoking: For those who find it too challenging to quit, a good start is to cut down. And for those who don’t smoke, don’t start! Some young people start smoking because they think it makes them look “cool.” It doesn’t. It just advertises that, sadly, you have self-esteem issues. Others smoke to relieve stress. Exercise does the same and so much more.
As far as I’m concerned, and this is my opinion – a parent who exposes babies or children to second-hand smoke should consider himself/herself a rodef. They are life-threatening individuals.
Be aware of your surroundings: Be alert and aware of the traffic and people around you. Know where you are going, and have a working cell phone handy in case of any problems. Always check the front and back seats of your car before entering it, even if the car was locked. Try not to walk alone in an unfamiliar or deserted area.
There are many more areas vis-à-vis our personal lives where we can do teshuvah. But trying to improve even one is a good beginning to a life well lived.