That is good, but with newspaper/paper i try to clean/wipe bin with a reptile safe cleaner weekly, as the generally always do soak through paper (when it is replaced and i use indent kraft paper which is alot thicker then newsprint) But generally the same, every month no matter what i do a full whipe down with a bleach mix/scalding hot water. Aswell if snake did make a mess on hot spot, i generally will not "Bath" the snake but take a warm damp paper towel and wipe him down to keep them clean, and not smell from urine/fecal. Aswell when i clean the tubs i wipe the top of my ARS down with a warm cloth aswell. and every 3months do a Full bleach clean on the top to avoid any mold/mildew and also helps prevent any rust that may happen =)