I admit it -- 30 years ago I did not wear a seatbelt. It wasn't the law then. My wife (she was my girlfriend at the time) made me do it. And in no time, the habit was formed. If I forgot and then noticed it I felt like I was going to fly out of the car. I still see clients who have been ticketed for not wearing their seatbelts; the police do watch for it. This must be the easiest tip/rule to observe. Please do!