How often do you clean out your dog's crate?

How often do you clean out your dog's crate?
I wipe the bottom of Hooch's daily (with an antibacterial wetwipe or if we've run out of those, just a damp sponge) and change his blankets/bed whenever they get stinky. I give the thing a proper clean every couple of months or so.
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Dog Cage|Dog Cages