The alcohol mix I used to prep the car didn't seem to remove the gum from the car. That's how the mitt got contaminated. I thought it was just a scratch, since the alcohol/water mix didn't remove it. I found that bug and tar remover makes it come off instantly, but no idea if I can use that on the mitt. For the duct tape...just put it on the affected area on the mitt and pull off?
$25 mitts that I have to wait a couple days to get is discouraging when trying to clean up a car. Seems to easy for an amateur like me to miss something and contaminate it again.