I know this is COMPLETELY random, but I was wondering, for anyone who has an Antec P180b case with STOCK fans, how often do you find yourself cleaning the filters? I was just curious cause I have to do it like once a WEEK and it's usually completely clogged. It's on the floor, but, more importantly, one of our cats pretty much LIVES in my room, and that makes a lot of dust-stuff. Just wanted some sort of comparison. And what speed settings are your fans set to also?