no one would ever accuse me of being a neat freak; but i just picked up my first round port cabinet in 30 years (Aggie DB112nt) and the two rear ports give a clear view into the cab, the 12" driver and the yellow fluffy stuff they use for damping. The prior owner only had this cab a couple of months but there is already a collection of dust bunnies in the cab. what can be done to keep dirt and small creatures from taking up residence in this type of cab? It seems like more of a problem w/ round ports, as the TL606 type Mesa Boogie cabinets i owned had rectangular ports at the bottom of the cab and gravity helped keep them clean. Is there anything that could prevent crap from entering via the ports but not impact the airflow / performance of the ports? Or is the best idea to just stuff an old sweatshirt in the port when you are not playing? (pull it out prior to playing, stuff it back in after you are done) any better suggestions?