Well I couldn’t take it any longer I lowered the Otter down from the garage rafters. Every year it seems like more and more film gets built up on my windows. What do all of you use to clean these and restore them to the way they used to be? I’ve used invisible glass cleaner and a few others, it helps some but I can’t get it all. Also what do you use to clean the regular fabric of the shack? It’s not too bad but I want to keep it in as good of shape as possible.