John have you considered sealing off the door from the wash bay into the main floor area? (by the washroom). There's a lot of grease from boots that gets all over the carpet that I guess is coming from there.
I agree with TS.
Team Caffee, how dare you share your ideas with those of us who don't have/never had the need of these, thus they must not be needed.
Signed,
Angry Trucker :p