Guys, when it comes to cleaning window's, and if it's got a crack, no matter how big or small, or if its double glazed, do you clean it or leave it, or just spray some water on it? Personally I leave it well alone! If I have given a verbal quote, and on my arrival, cust not in, and one or more window/s has a crack on it, I just leave those window's (that have the crack) and let cust know. If cust is in, and I see the cracks I let them know I don't clean them. What are your thoughts.... Do you clean them or stay well clear?!