I am convinced that there are two types of car owners.
There are those who keep their car basically as it is. They may want to resell it at some point in the future. They may think the car (or truck or van or SUV) looks fine the way it is. These owners may add a school magnet. They may have a college or university cling in the window. But they aren’t making any kind of long-term alterations to their vehicle. This category includes most owners, including me.
Then there are those who choose bumper stickers.
The people that choose bumper stickers are kind of like people that have tattoos. Most of them don’t stop at just one. In fact, when you encounter a car with bumper stickers, you will more than likely see someone who has decided that their car should be the outward reflection of their entire personality. You know the cars I am talking about.