Folks with lots of snakes use racks which helps tremendously. You want to have more rack spaces or tubs then snakes so when one gets real messy you can swap out a fresh tub quickly and clean the soiled one when convenient.
I use two products to clean
Cholorohexidine solution (diluted). Mix it down with water and can be used to spot clean or clean entire enclosure with bowls and hides, it is also used to clean wounds and at stronger concentrations my vet uses it to disinfect surgical tools.
Good Link http://www.valleyvet.com/ct_detail.h...2-00b0d0204ae5
And I also use Simple Green d Pro 3 a lot!, it zaps all bacteria, virus and fungus and is a great deodorizer. http://www.simplegreen.com/products_pro_3.php
Great for quarantines or mold. Always rinse thoroughly when using the simple green d pro 3
I clean when they mess or once a week. When pairing for breeding I may let the female enclosures stay a little messier with pee or sheds for the pheromone scents.