We hose it down two or three times a week mainly to get the bird crap of the deck. We know it is time to really clean and add a protective wax cover when the crap stops sliding away easily. The sails get washed when it rains or when they are down for repairs. We do clean the cabin thoroughly, no food left aboard to attract critters, a dehumidifier keeps mildew away, the head is cleaned and the plastic bag used to collect the sanitary paper disposed off. The galley and fridge are given a good cleaning as well. This cleaning usually takes place the day after arrival as when we get there we just usually tie and close the boat op and move on to sundowners.