I just get a clean rag and spray some household cleaner on it to dampen it and then run it over the equipment.
I'm not so concerned with germs as it would seem you and Esqy may be. I just clean to keep the equipment from going on the fritz.
I still have not found a satisfactory way of "cleaning" the keyboard to my satisfaction. I don't like the idea of using soo much water based liquid to clean up but one with alcohol as the solvent is just as bad imo. What do you use?