Been going 7 yrs on my; 6 yrs wfp.
Never been keen working in rain but getting fed up of running behind schedule.
And if rain on/off light/drizzle then why not?
Put this letter out today; after custies went in as coward and to be honest if i had got into discussion would have taken twice as long.
Also had 1 is it worth it? So said upto you? see you next time, but she said ok then do it.
Another wanted me to come back when it was sunny :

But see you next time; and said ok do it.
Plan to give everyone this letter, watch this pace I'l let you know if i still have a round next month

PLEASE READ
A letter from Lee your Window Cleaner.
Dear Customer just to let you know
I am now working Saturdays to
provide a more regular service,
I should visit on a calendar month (4.3 weeks).
Unfortunately the last few winters and now the excessively wet spring and summer have caused large delays to my schedule and great financial difficulty
for myself and family.
So I have also decided to now work more in wet weather.
(Obviously not Heavy Rain!).
I guarantee my work, so if you my valued customer were ever to be unhappy with the finish to your windows after they have dried, then please call me to re-clean any offending window(s).
If I do not start working this way now,
then I will be out of business by this time next year. (
Bit dramatic 
)
I am running a legitimate business which means this is my sole source of income.
Thank you for your custom and taking the time to read this letter.
Lee the window cleaner, Mobile:
Ps. Thats it did in 10 mins this morning before going out, forgot to add the mrs gets made redundant august

Tired of people trying to run my round, (probably been too accomadating in the past) now my round has grown to 220 custies and taking 6 weeks to get round, (do school runs to)
Want to shave timescale back down and enjoy more money in my pocket.
If anyone is adamant they don't want it done then it's just a case of leave it til next time, especially if custie is having work on house and wont let me do then (i understand)
But wanting you to come back next week etc, is a pita.
Lee