Chris your post would be more relevant if Jonny was busting his back, I would say you put more effort into each
of your properties just by over cleaning.
Your right it is about how much you want to achieve per day but that doesn't mean you cant do it in the most effective way
possible.
I often get told by my customers "your very thorough", or "very particular". It's for that very reason there happy to pay that bit extra.
If I flew through there windows in 10 mins, knock on there door and say "that's £18 please", can you imagine the resentment they would soon start feeling towards me lol.
Almost all work iv picked up recently, including a large commercial, were for the same reason. "The previous guys were only here for a couple of minutes and charged a fortune".