Quick bit of background:
Small estate where I do a dozen or so houses. 3 bed semis that I knock out in 20ish minutes and charge £10.
Gets a call last week from No.9 who wants me to add her to the round but says: "I only get them cleaned once a year". I think that's a bit odd as I've done this estate for 4 years and never seen another window cleaner, but don't think any more about it.
I have no problem with annual cleans as I reason it's their windows to have cleaned as often or little as they want....as long as I know up front and therefore can price accordingly.
Tell her it's £30....fine she says.
Cleaned last year my arse

...these windows haven't seen a clean since Queen Victoria was on the throne.
2 hours...2 bloody hours it took to do both sides...oh and the husband is a smoker
OK she did give me £40 and promised to have them cleaned quarterly...
...but why the Pork Pies? Does she imagine all window cleaners are thick :
