We leave an A folded card on their desk saying,
We were unable to clean your desk due to it not being left clear.
Whilst this may not concern you, it does reflect badly on the service we provide.
For future reference desks are polished on Tuesdays and Thursdays
Thankyou for you co-operation
I agree the use of the cards at the contract start and so far everyone has been more than happy to go along with it, and it def works