The Envelope System – pay anonymously!
If you want to keep the amount you pay anonymous, I operate an ‘envelope system’. At the end of your treatment, while I’m preparing the treatment couch for the next patient (and therefore not looking at you!), please put your chosen cash amount into an envelope (provided here at the clinic) and leave it in the box on my desk amongst the other envelopes.
I can’t tell which envelope belongs to which patient, and therefore your payment amount is anonymous.