A daily wipe-down with a damp paper towel is the best way to clean droppings from a hamster, a rabbit, or another small animal. “Moisture keeps the droppings from turning to dust that can be inhaled,” says cleaning pro Donna Smallin Kuper. Be sure to dry it thoroughly afterward, as a cage with damp spots can quickly grow mold (also true for crates and kennels). For a deeper cleaning (at least once a week), mix drops of dish soap in a bucket of warm water and scrub the entire surface with a nylon-bristle brush. Rinse with a handheld showerhead or a garden hose to reach the corners, says pet pro Charlotte Reed. Dry completely with a paper towel, or let sit in the sun for an hour.