Squirting 1-2 spritzes of lube (any flavour or un flavoured) into a zip loc sandwich baggie and using it to jerk off with, simply close the bag and discard it in the trash can when you are finished.
-"Lord Archer, would you kindly turn round so I can clean your drains?"
-"Ok governor, but hurry it up you shit shunter, I have to write two novels by tea time."