i used body color in my step wells.
one of the guys that hangs around the shop installs
3m paint protection film as a side job.
he put 2 coats of the 3m film on both my steps to keep the paint from being scratched.
i've seen carpet, aluminum plate and other methods to keep foot prints off the steps.
the film works well, been there for 3 yrs thru construction and 5000 miles and my steps still look good.
we tried to put it on the bed steps, but the ups and downs of those steps were too sharp to get the film to lay down.