good post dave.although i do think the weather is usually worse in holland than back here in manchester!having emergency money is paramount in any business.
i do think that scheduled cleans is a big no no.i have a few text/phone the night before but i like to be more flexible and turn up roughly on time.
leaflet only also is not for me.leaflet THEN canvass few days later i find more successful.also it makes the work more compact.so many people have busy lives that they never get round to ringing you even though they do want a window cleaner!!

i agree get the best poles you can afford and go straight for a van mount.
my round changes all the time.adding new customers here and there.losing a few due to moving,losing job etc.
i am targeting bigger 8 weekly accounts at good prices and i can always find room to fit them in!!
i also think if your starting out you should eat,breathe and let window cleaning take over your life!!its sometimes the only way of building a half decent round.once your established the work becomes self generating and you can slack off a bit and do other things!
best wishes
dazmond