For most of us, it's not our favorite thing about having guinea pigs, but it has to be done. Yep, cleaning those cages. I have a 4x3 C&C cage with four pigs in it. How often should I clean? What about "freashen it up"? I heard when it gets messy you should just throw some new beeding in there to make it last longer. Any tips on cleaning it out? Thanks a bunch!