Clean under the fridge ... I pull the drip pan about every 6 or 8 weeks, wash it and put it back. Retrieve lost kitty toys from under the fridge as needed. I wash the grate thingie when I do the floor.

Pull it away from the wall - never, the way it was installed I can't slide it out. (it was here before I was, so I won't be moving it unless/until it stops working)