I did an experiment this week to see how quick I could clean my own windows after 8 weeks without a clean.
Did a quick slap dash over windows Monday, checked them and they were fine not a spot or drip.
After the winds we have had today the back windows are a real mess, full of white spots, fronts OK. The wind was hitting the house at the back and obviously was carrying a lot of dirt with it.
Never had a complaint after 9 months wfp, but now thinking all the work I did on Wednesday may well look like my back windows, lets see if the phone rings tomorrow.
Wayne