Okay so I've not seen any threads on this topic on here or anywhere else. It's just got me thinking since I'm still trying to make up my mind to go full time or not. I've seen that you can now buy self cleaning glass, it's probably **** but things evolve to get better. Just like electric cars, every man and his dog is going to have a Tesla in 20 years. It makes me think could window cleaners go out of business in 20 years. What do you guys think?