SSWC is correct...I AM an expert in window cleaning (Even if he was sticking his tongue in his cheek with his condescending reply) and if I'm not then I should be after 27 o years in this game.
I am not dismissing leaflets, they can work, but even the very best designed ones will have a relatively low return unless followed up with a knock on the door.
I hated with a vengeance knocking on doors, I did so initially to build my round and got very good at it, when I was doing it all the time it was fine, but as time passed my enthusiasm for it waned to the point where the times arose when I should have gone out knocking on doors (such as when taking on someone else and needing to expand a little) I took the easy route and tried a major leafletting method, then because returns were so low went back to door knocking.
Don't get me wrong, if you don't do it right you won't get much work door knocking either!
Go out unshaved, scruffy, f
ag hanging out the corner of your mouth, dour expression and exuding a total lack of belief in yourself then you will fail miserably, deservedly so.
I haven't the time this morning to try and detail the bits that I personally know that work (gotta clean some windows to try and earn a living!)
In my previous guise as a decorator, at one point I tried the leaflet route to try and get work (in a dry spell) with very little success.
Then paid one of the lads that was working for me at the time - he had more chops than a flock of sheep

- to go out knocking doors as he delivered leaflets....BOOM! He got me about a dozen leads after just a single morning of canvassing this way....unfortunately he was a useless decorator so had to sack him anyway.
When I was out knocking doors building my round I knew within seconds whether I had a shout of picking up a customer, if the husband answered the door and shouted back over his shoulder to ask the wife if she wanted a window cleaner I was half way back down the path before she'd even replied....but a different ball game if hubby answers the door to a pretty, smiling face and a heaving bosom! (and no, not Tosh in full drag either!!)
Hence why I mentioned having the wife or girlfriend along with you.
Out of time, work beckons.
Ian