It takes about two years to rub the rubber off the pedals in the pickup. When I got the new Chevy at work, one of the head honchos from the Portland office came up, said, look, new pickup, and scraped his calk on the part that gets all scratched up inside the door.
I did a lot of driving with them on because it took too much time to change. They never stuck at a bad time. Also, wearing calks made me feel better when having to stop to talk to strange tourist/hunters/woodcutters along the way. A logger told me the secret of fighting with calks on.
The businesses here all used to have No Calks, No Guns, No Knives on their doors. Things were rowdier then.