I was out on my bike with a couple of mates when one of them says "I've got myself a window cleaner - he's charging me £30 to clean my windows every other month."
(I've always declined to do his windows as I've not got any work near him (and he's a fussy beggar))
Any way I snorted at the price (thinking "Blimey that's dear!)
My mate says "Is that cheap then? - I'd have thought £40 was about right!"
I said "No - I would have thought £20 was about right, but I'm not offering!"
He comes back with - "I don't mind, it takes me half a day when I do them myself!"
Shows how we can have our expectations wrong eh?
Incidently, he lives in a 3 bed bungalow with a large conservatory and two upstairs windows. (all leaded except the concervatory) -With a pole? 40 mins tops.