I just spot clean, pick out the poop and the old food, make sure the substrate is damp and if you stay on it your substrate will last a long time...Is that what you wanted to know? That is if you have a good substrate...
I do like what Maggie said...I spot clean daily and when the substrate (I use orchid bark) starts to dry out, I pour water on it and stir it up with my hand. This keeps the substrate turned and freshened. I use the same substrate for a whole season.