When the weather is wet and very widy, I feel guilty doing houses WFP as I know full well WFP doesn't do a top job.
Though these are also the kind of conditions that are very dangerous to work off ladders.
I try to cherry pick houses or try to find sheltered spots.
I don't find the rain to be much of a problem, nor light to medium winds, trad does a more reliable job in bad conditions, but even so, the windows are soon mucked up again where the weather is swirling around.
Commercial work is different, weekly shops have to be done regardless, but even on large commercial offices, if it is monthly and you know full well that half the windows are not going to be cleaned propely then I would put them off for a day or too until the weather settles down.
If an account is contracted to, say, the first week in every month, or even more specifically to a set date or day then you just carry on regardless.
I understand the arguement about paying the bills, got a living to earn and so on, but my own personal conscience just won't let me do work that I know is actually a waste of time.
And that applied just as equally when I was full time trad too.
Ian