Who would have the time to?
At this point I think the act of re-shuffling and putting everything neat and straight for the next
person can probably be done with "mindfully cleansing proportions". And that would be enough.
(If you are of a mind of believing that cleansing has to be done in the first place).
Or - some one could be very simple... (Just like my sister says "Reiki ON" before she starts a treatment, cutting out all the fancy stuff that different practitioners like) - one could just wave over the deck and say "be clean" - or "shine up now" - or some other such appropriate phrase.
Depends whether you believe this would work or not as a cleansing ritual.
And what about yourself spinnachie? what do you consider a cleansing ritual?