OH NO,
Not this old chestnut again :

:

:

Yeah, OK it is a bit niggling leaving the windows wet. But to be honest I think WE, us window cleaners are more bothered about it than the customers.
Most of my customers don't give a toss.....Their windows are clean

:

Some of my old customers have commented they preferred the "old way" but won't stop me cause at least they are clean

Yes, if I admit it :

Leaving the windows wet has been the worst thing to get used to with WFP.
You don't know if you have got it right until they dry. If you've got it wrong.....they'll soon ring you up (and they did when I first started :

)
Now:
1 I rarely get any complaints
2 If I do I can 99.9% of the time find out what I did wrong and sort it

My confidence has grown and so has my customers

My advise:
Believe in yourself and your system

Be honest - if YOU make a mistake, put it right, no quibble

David